{"title":"All Manufacturers","description":"","products":[{"product_id":"lg-bw-400-es","title":"LG BW 400 ES 8\" Low Energy Brackish Water RO Membrane | KnappRO","description":"\u003cp data-start=\"546\" data-end=\"1075\"\u003eThe \u003cstrong data-start=\"550\" data-end=\"566\"\u003eLG BW 400 ES\u003c\/strong\u003e is a high-efficiency \u003cstrong data-start=\"588\" data-end=\"615\"\u003e8\" replacement membrane\u003c\/strong\u003e, engineered for \u003cstrong data-start=\"632\" data-end=\"686\"\u003ebrackish water reverse osmosis (BWRO) applications\u003c\/strong\u003e that require \u003cstrong data-start=\"700\" data-end=\"749\"\u003elow-energy operation with high salt rejection\u003c\/strong\u003e. Manufactured by \u003cstrong data-start=\"767\" data-end=\"778\"\u003eLG Chem\u003c\/strong\u003e, this membrane is optimized for \u003cstrong data-start=\"811\" data-end=\"841\"\u003ereduced operating pressure\u003c\/strong\u003e, ensuring \u003cstrong data-start=\"852\" data-end=\"920\"\u003elower energy costs while maintaining superior water purification\u003c\/strong\u003e. Ideal for \u003cstrong data-start=\"932\" data-end=\"989\"\u003eindustrial, commercial, and municipal water treatment\u003c\/strong\u003e, the \u003cstrong data-start=\"995\" data-end=\"1011\"\u003eLG BW 400 ES\u003c\/strong\u003e delivers \u003cstrong data-start=\"1021\" data-end=\"1072\"\u003eoptimized performance and long-term reliability\u003c\/strong\u003e.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 data-start=\"546\" data-end=\"1075\"\u003eTechnical Specifications\u003c\/h2\u003e\n\u003cp data-start=\"546\" data-end=\"1075\"\u003e• Permeate Flow: 10,500 GPD (39.7 m³\/day)\u003cbr\u003e• Stabilized Salt Rejection: 99.6%\u003cbr\u003e• Minimum Salt Rejection: 99.5%\u003cbr\u003e• Active Membrane Area: 400 ft² (37 m²)\u003cbr\u003e• Element Size: 8\" diameter × 40\" length (8040)\u003cbr\u003e• Feed Spacer: 34 mil\u003cbr\u003e• Membrane Type: Thin-Film Composite (TFC) – Low Energy Design\u003cbr\u003e• Test Pressure: Optimized for lower operating pressure\u003cbr\u003e• Maximum Operating Temperature: 113°F (45°C)\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"1077\" data-end=\"1100\"\u003e\u003cstrong data-start=\"1081\" data-end=\"1098\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1101\" data-end=\"1979\"\u003e✔️ \u003cstrong data-start=\"1104\" data-end=\"1119\"\u003e8\" Diameter\u003c\/strong\u003e – Standard size for high-capacity reverse osmosis systems\u003cbr data-start=\"1177\" data-end=\"1180\"\u003e✔️ \u003cstrong data-start=\"1183\" data-end=\"1205\"\u003eLG Chem Technology\u003c\/strong\u003e – Advanced membrane design for efficient brackish water treatment\u003cbr data-start=\"1271\" data-end=\"1274\"\u003e✔️ \u003cstrong data-start=\"1277\" data-end=\"1306\"\u003eEnergy-Saving (ES) Design\u003c\/strong\u003e – Operates at lower pressure to reduce energy consumption\u003cbr data-start=\"1364\" data-end=\"1367\"\u003e✔️ \u003cstrong data-start=\"1370\" data-end=\"1393\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes dissolved solids, contaminants, and organic matter\u003cbr data-start=\"1466\" data-end=\"1469\"\u003e✔️ \u003cstrong data-start=\"1472\" data-end=\"1502\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maximizes water output while minimizing fouling potential\u003cbr data-start=\"1562\" data-end=\"1565\"\u003e✔️ \u003cstrong data-start=\"1568\" data-end=\"1607\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Ensures durability and extends membrane lifespan\u003cbr data-start=\"1658\" data-end=\"1661\"\u003e✔️ \u003cstrong data-start=\"1664\" data-end=\"1715\"\u003eIndustrial, Commercial \u0026amp; Municipal Applications\u003c\/strong\u003e – Ideal for drinking water systems, wastewater reclamation, and process water treatment\u003cbr data-start=\"1803\" data-end=\"1806\"\u003e✔️ \u003cstrong data-start=\"1809\" data-end=\"1836\"\u003eReliable \u0026amp; Long-Lasting\u003c\/strong\u003e – Built to withstand demanding operating conditions\u003cbr data-start=\"1888\" data-end=\"1891\"\u003e✔️ \u003cstrong data-start=\"1894\" data-end=\"1928\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing RO systems\u003c\/p\u003e\n\u003cp data-start=\"1981\" data-end=\"2247\"\u003eThe \u003cstrong data-start=\"1985\" data-end=\"2025\"\u003eLG BW 400 ES 8\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-start=\"2033\" data-end=\"2100\"\u003eideal solution for energy-efficient brackish water desalination\u003c\/strong\u003e, offering \u003cstrong data-start=\"2111\" data-end=\"2210\"\u003eoptimized water production, superior contaminant removal, and long-term operational reliability\u003c\/strong\u003e for industrial and commercial use.\u003c\/p\u003e\n\u003cp data-start=\"2249\" data-end=\"2296\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/Datasheet_LG_BW_400_ES_ENG.pdf?v=1743182340\" title=\"Download LG BW 400 ES Datasheet\" rel=\"noopener\" target=\"_blank\"\u003eDownload LG BW 400 ES Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"LG Water Solutions","offers":[{"title":"Default Title","offer_id":46938371457264,"sku":null,"price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/LG_BW_400_ES_8_Inch_Brackish_Water_RO_Membrane_Element_11500_GPD_Energy_Efficient.png?v=1772148034"},{"product_id":"lg-bw-400-es-l","title":"LG BW 400 ES L – 8\" Reverse Osmosis Membrane","description":"\u003cp data-end=\"1021\" data-start=\"562\"\u003eThe \u003cstrong data-end=\"584\" data-start=\"566\"\u003eLG BW 400 ES L\u003c\/strong\u003e is a high-efficiency \u003cstrong data-end=\"633\" data-start=\"606\"\u003e8\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-end=\"702\" data-start=\"648\"\u003ebrackish water reverse osmosis (BWRO) applications\u003c\/strong\u003e requiring \u003cstrong data-end=\"770\" data-start=\"713\"\u003esuperior salt rejection with optimized energy savings\u003c\/strong\u003e. Manufactured by \u003cstrong data-end=\"799\" data-start=\"788\"\u003eLG Chem\u003c\/strong\u003e, this membrane is engineered for \u003cstrong data-end=\"859\" data-start=\"833\"\u003elow-pressure operation\u003c\/strong\u003e, reducing energy consumption while maintaining \u003cstrong data-end=\"939\" data-start=\"907\"\u003ehigh-purity water production\u003c\/strong\u003e, making it ideal for \u003cstrong data-end=\"1018\" data-start=\"961\"\u003eindustrial, commercial, and municipal water treatment\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-end=\"1046\" data-start=\"1023\"\u003e\u003cstrong data-end=\"1044\" data-start=\"1027\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1938\" data-start=\"1047\"\u003e✔️ \u003cstrong data-end=\"1065\" data-start=\"1050\"\u003e8\" Diameter\u003c\/strong\u003e – Standard size for high-capacity reverse osmosis systems\u003cbr data-end=\"1126\" data-start=\"1123\"\u003e✔️ \u003cstrong data-end=\"1151\" data-start=\"1129\"\u003eLG Chem Technology\u003c\/strong\u003e – Industry-leading membrane innovation for brackish water treatment\u003cbr data-end=\"1222\" data-start=\"1219\"\u003e✔️ \u003cstrong data-end=\"1254\" data-start=\"1225\"\u003eEnergy-Saving (ES) Design\u003c\/strong\u003e – Optimized for lower operating pressure, reducing energy costs\u003cbr data-end=\"1321\" data-start=\"1318\"\u003e✔️ \u003cstrong data-end=\"1347\" data-start=\"1324\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes dissolved solids, contaminants, and organic matter\u003cbr data-end=\"1423\" data-start=\"1420\"\u003e✔️ \u003cstrong data-end=\"1453\" data-start=\"1426\"\u003eOptimized Flow Dynamics\u003c\/strong\u003e – Maintains high water output while minimizing fouling potential\u003cbr data-end=\"1521\" data-start=\"1518\"\u003e✔️ \u003cstrong data-end=\"1563\" data-start=\"1524\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and extends membrane lifespan\u003cbr data-end=\"1618\" data-start=\"1615\"\u003e✔️ \u003cstrong data-end=\"1672\" data-start=\"1621\"\u003eIndustrial, Commercial \u0026amp; Municipal Applications\u003c\/strong\u003e – Ideal for drinking water systems, wastewater reclamation, and process water treatment\u003cbr data-end=\"1763\" data-start=\"1760\"\u003e✔️ \u003cstrong data-end=\"1793\" data-start=\"1766\"\u003eReliable \u0026amp; Long-Lasting\u003c\/strong\u003e – Built to withstand high-demand operating conditions\u003cbr data-end=\"1850\" data-start=\"1847\"\u003e✔️ \u003cstrong data-end=\"1887\" data-start=\"1853\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing RO systems\u003c\/p\u003e\n\u003cp data-end=\"2203\" data-start=\"1940\"\u003eThe \u003cstrong data-end=\"1986\" data-start=\"1944\"\u003eLG BW 400 ES L 8\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-end=\"2059\" data-start=\"1994\"\u003eideal choice for energy-efficient brackish water desalination\u003c\/strong\u003e, offering \u003cstrong data-end=\"2157\" data-start=\"2070\"\u003eoptimized water production, superior contaminant removal, and long-term reliability\u003c\/strong\u003e for industrial and commercial applications.\u003c\/p\u003e\n\u003cp data-end=\"2252\" data-start=\"2205\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/Datasheet_LG_BW_400_ES_L_ENG_1.pdf?v=1743182279\" target=\"_blank\" title=\"Download LG BW 400 ES L Datasheet\" rel=\"noopener\"\u003eDownload LG BW 400 ES L Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"LG Water Solutions","offers":[{"title":"Default Title","offer_id":46938371490032,"sku":null,"price":440.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/LG_BW_400_ES_L_8_Inch_Brackish_Water_RO_Membrane_10500_GPD_Energy_Saving_Low_dP.png?v=1764183292"},{"product_id":"lg-bw-400-r","title":"LG BW 400 R – 8\" Reverse Osmosis Membrane","description":"\u003cp data-end=\"954\" data-start=\"534\"\u003eThe \u003cstrong data-end=\"553\" data-start=\"538\"\u003eLG BW 400 R\u003c\/strong\u003e is a high-efficiency \u003cstrong data-end=\"602\" data-start=\"575\"\u003e8\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-end=\"671\" data-start=\"617\"\u003ebrackish water reverse osmosis (BWRO) applications\u003c\/strong\u003e requiring \u003cstrong data-end=\"749\" data-start=\"682\"\u003esuperior salt rejection, high durability, and energy efficiency\u003c\/strong\u003e. Manufactured by \u003cstrong data-end=\"778\" data-start=\"767\"\u003eLG Chem\u003c\/strong\u003e, this membrane provides \u003cstrong data-end=\"864\" data-start=\"803\"\u003eoptimized water purification with improved recovery rates\u003c\/strong\u003e, making it ideal for \u003cstrong data-end=\"951\" data-start=\"886\"\u003eindustrial, commercial, and municipal water treatment systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-end=\"979\" data-start=\"956\"\u003e\u003cstrong data-end=\"977\" data-start=\"960\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1919\" data-start=\"980\"\u003e✔️ \u003cstrong data-end=\"998\" data-start=\"983\"\u003e8\" Diameter\u003c\/strong\u003e – Standard size for high-capacity reverse osmosis systems\u003cbr data-end=\"1059\" data-start=\"1056\"\u003e✔️ \u003cstrong data-end=\"1084\" data-start=\"1062\"\u003eLG Chem Technology\u003c\/strong\u003e – Industry-leading membrane innovation for brackish water treatment\u003cbr data-end=\"1155\" data-start=\"1152\"\u003e✔️ \u003cstrong data-end=\"1181\" data-start=\"1158\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Removes dissolved solids, contaminants, and organics for ultra-pure water\u003cbr data-end=\"1260\" data-start=\"1257\"\u003e✔️ \u003cstrong data-end=\"1295\" data-start=\"1263\"\u003eEnergy-Efficient Performance\u003c\/strong\u003e – Operates with lower energy consumption while maintaining high filtration efficiency\u003cbr data-end=\"1384\" data-start=\"1381\"\u003e✔️ \u003cstrong data-end=\"1417\" data-start=\"1387\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maximizes water output with reduced fouling potential\u003cbr data-end=\"1476\" data-start=\"1473\"\u003e✔️ \u003cstrong data-end=\"1518\" data-start=\"1479\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and long-term membrane life\u003cbr data-end=\"1571\" data-start=\"1568\"\u003e✔️ \u003cstrong data-end=\"1625\" data-start=\"1574\"\u003eIndustrial, Commercial \u0026amp; Municipal Applications\u003c\/strong\u003e – Ideal for drinking water production, wastewater reclamation, and industrial process water treatment\u003cbr data-end=\"1730\" data-start=\"1727\"\u003e✔️ \u003cstrong data-end=\"1760\" data-start=\"1733\"\u003eReliable \u0026amp; Long-Lasting\u003c\/strong\u003e – Built to withstand high-pressure operating conditions\u003cbr data-end=\"1819\" data-start=\"1816\"\u003e✔️ \u003cstrong data-end=\"1856\" data-start=\"1822\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Designed for seamless integration into existing RO systems\u003c\/p\u003e\n\u003cp data-end=\"2152\" data-start=\"1921\"\u003eThe \u003cstrong data-end=\"1964\" data-start=\"1925\"\u003eLG BW 400 R 8\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-end=\"2020\" data-start=\"1972\"\u003eideal choice for brackish water desalination\u003c\/strong\u003e, offering \u003cstrong data-end=\"2115\" data-start=\"2031\"\u003eexceptional salt rejection, energy-efficient operation, and long-term durability\u003c\/strong\u003e for industrial and commercial use.\u003c\/p\u003e\n\u003cp data-end=\"2201\" data-start=\"2154\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/Datasheet_LG_BW_400_R_ENG_Rev_1.pdf?v=1743182210\" target=\"_blank\" title=\"Download LG BW 400 R Datasheet\" rel=\"noopener\"\u003eDownload LG BW 400 R Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"LG Water Solutions","offers":[{"title":"Default Title","offer_id":46938371555568,"sku":null,"price":450.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/LG_BW_400_R_8_Inch_Brackish_Water_RO_Membrane_Element_10500_GPD_High_Rejection.png?v=1764183278"},{"product_id":"lg-bw-400-r-g2","title":"LG BW 400 R G2 8\" High Rejection Brackish Water RO Membrane | KnappRO","description":"\u003cp data-start=\"543\" data-end=\"959\"\u003eThe LG BW 400 R G2 is a next-generation 8\" reverse osmosis membrane from LG Chem, engineered for high salt rejection and excellent fouling resistance in brackish water applications. It delivers 11,500 GPD at 99.8% stabilized salt rejection, making it ideal for industrial, commercial, and municipal water treatment systems that demand both performance and durability.\u003c\/p\u003e\n\u003ch2 data-start=\"543\" data-end=\"959\"\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-start=\"543\" data-end=\"959\"\u003e• Permeate Flow: 11,500 GPD (43.5 m³\/day)\u003cbr\u003e• Stabilized Salt Rejection: 99.8%\u003cbr\u003e• Minimum Salt Rejection: 99.65%\u003cbr\u003e• Active Membrane Area: 400 ft² (37 m²)\u003cbr\u003e• Element Size: 8\" diameter × 40\" length (8040)\u003cbr\u003e• Feed Spacer: Low dP design for reduced pressure drop\u003cbr\u003e• Membrane Type: Thin-Film Composite (TFC) with enhanced fouling resistance\u003cbr\u003e• Maximum Operating Pressure: 600 psig\u003cbr\u003e• Maximum Operating Temperature: 113°F (45°C)\u003cbr\u003e\u003c\/p\u003e\n\u003ch3 data-start=\"961\" data-end=\"984\"\u003e\u003cstrong data-start=\"965\" data-end=\"982\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"985\" data-end=\"1932\"\u003e✔️ \u003cstrong data-start=\"988\" data-end=\"1003\"\u003e8\" Diameter\u003c\/strong\u003e – Standard size for high-capacity reverse osmosis systems\u003cbr data-start=\"1061\" data-end=\"1064\"\u003e✔️ \u003cstrong data-start=\"1067\" data-end=\"1089\"\u003eLG Chem Technology\u003c\/strong\u003e – Cutting-edge membrane innovation for brackish water treatment\u003cbr data-start=\"1153\" data-end=\"1156\"\u003e✔️ \u003cstrong data-start=\"1159\" data-end=\"1182\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes dissolved solids, contaminants, and organics for ultra-pure water\u003cbr data-start=\"1270\" data-end=\"1273\"\u003e✔️ \u003cstrong data-start=\"1276\" data-end=\"1308\"\u003eEnergy-Efficient Performance\u003c\/strong\u003e – Operates with lower energy consumption while maintaining high filtration efficiency\u003cbr data-start=\"1394\" data-end=\"1397\"\u003e✔️ \u003cstrong data-start=\"1400\" data-end=\"1430\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maximizes water output with reduced fouling potential\u003cbr data-start=\"1486\" data-end=\"1489\"\u003e✔️ \u003cstrong data-start=\"1492\" data-end=\"1531\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and long-term membrane life\u003cbr data-start=\"1581\" data-end=\"1584\"\u003e✔️ \u003cstrong data-start=\"1587\" data-end=\"1638\"\u003eIndustrial, Commercial \u0026amp; Municipal Applications\u003c\/strong\u003e – Ideal for drinking water production, wastewater reclamation, and industrial process water treatment\u003cbr data-start=\"1740\" data-end=\"1743\"\u003e✔️ \u003cstrong data-start=\"1746\" data-end=\"1773\"\u003eReliable \u0026amp; Long-Lasting\u003c\/strong\u003e – Built to withstand high-pressure operating conditions\u003cbr data-start=\"1829\" data-end=\"1832\"\u003e✔️ \u003cstrong data-start=\"1835\" data-end=\"1869\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Designed for seamless integration into existing RO systems\u003c\/p\u003e\n\u003cp data-start=\"1934\" data-end=\"2168\"\u003eThe \u003cstrong data-start=\"1938\" data-end=\"1980\"\u003eLG BW 400 R G2 8\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-start=\"1988\" data-end=\"2036\"\u003eideal choice for brackish water desalination\u003c\/strong\u003e, offering \u003cstrong data-start=\"2047\" data-end=\"2131\"\u003eexceptional salt rejection, energy-efficient operation, and long-term durability\u003c\/strong\u003e for industrial and commercial use.\u003cbr\u003e\u003cbr\u003eAt KnappRO Chicago we stock genuine LG Chem membranes with fast shipping from our U.S. warehouse. Need help choosing the right membrane? Contact our team for expert guidance.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-start=\"2170\" data-end=\"2217\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/Data_sheet_LG-BW-400-R-G2.pdf?v=1743182059\" title=\"Download LG BW 400 R G2 Datasheet\" rel=\"noopener\" target=\"_blank\"\u003eDownload LG BW 400 R G2 Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"LG Water Solutions","offers":[{"title":"Default Title","offer_id":46938371588336,"sku":null,"price":560.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/image_052d8a69-e31c-4ad8-8a8a-1d0c6b52397d.jpg?v=1772147951"},{"product_id":"xle-4021","title":"DuPont FilmTec XLE-4021 – 4\" Reverse Osmosis Membrane","description":"\u003cp data-start=\"548\" data-end=\"991\"\u003eThe \u003cstrong data-start=\"552\" data-end=\"579\"\u003eDuPont FilmTec XLE-4021\u003c\/strong\u003e is a high-efficiency \u003cstrong data-start=\"601\" data-end=\"628\"\u003e4\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-start=\"643\" data-end=\"691\"\u003elow-energy reverse osmosis (RO) applications\u003c\/strong\u003e that require \u003cstrong data-start=\"705\" data-end=\"759\"\u003emaximum water production with minimal energy usage\u003c\/strong\u003e. Featuring \u003cstrong data-start=\"771\" data-end=\"811\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane operates at \u003cstrong data-start=\"839\" data-end=\"895\"\u003elower pressure while maintaining high salt rejection\u003c\/strong\u003e, making it ideal for \u003cstrong data-start=\"917\" data-end=\"988\"\u003eindustrial, commercial, and light municipal water treatment systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"993\" data-end=\"1016\"\u003e\u003cstrong data-start=\"997\" data-end=\"1014\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1017\" data-end=\"1962\"\u003e✔️ \u003cstrong data-start=\"1020\" data-end=\"1035\"\u003e4\" Diameter\u003c\/strong\u003e – Standard size for mid-capacity reverse osmosis systems\u003cbr data-start=\"1092\" data-end=\"1095\"\u003e✔️ \u003cstrong data-start=\"1098\" data-end=\"1127\"\u003eDuPont FilmTec Technology\u003c\/strong\u003e – Industry-leading membrane for high-efficiency filtration\u003cbr data-start=\"1186\" data-end=\"1189\"\u003e✔️ \u003cstrong data-start=\"1192\" data-end=\"1219\"\u003eLow-Energy (XLE) Design\u003c\/strong\u003e – Operates at lower pressure, reducing energy costs while maintaining performance\u003cbr data-start=\"1301\" data-end=\"1304\"\u003e✔️ \u003cstrong data-start=\"1307\" data-end=\"1330\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes dissolved solids, contaminants, and impurities\u003cbr data-start=\"1399\" data-end=\"1402\"\u003e✔️ \u003cstrong data-start=\"1405\" data-end=\"1435\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Delivers high water output while minimizing operational costs\u003cbr data-start=\"1499\" data-end=\"1502\"\u003e✔️ \u003cstrong data-start=\"1505\" data-end=\"1544\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and ensures consistent filtration performance\u003cbr data-start=\"1612\" data-end=\"1615\"\u003e✔️ \u003cstrong data-start=\"1618\" data-end=\"1675\"\u003eIndustrial, Commercial \u0026amp; Light Municipal Applications\u003c\/strong\u003e – Ideal for drinking water purification, food and beverage processing, and boiler feed water treatment\u003cbr data-start=\"1778\" data-end=\"1781\"\u003e✔️ \u003cstrong data-start=\"1784\" data-end=\"1811\"\u003eReliable \u0026amp; Long-Lasting\u003c\/strong\u003e – Built for extended membrane life with minimal maintenance\u003cbr data-start=\"1871\" data-end=\"1874\"\u003e✔️ \u003cstrong data-start=\"1877\" data-end=\"1911\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing RO systems\u003c\/p\u003e\n\u003cp data-start=\"1964\" data-end=\"2236\"\u003eThe \u003cstrong data-start=\"1968\" data-end=\"2019\"\u003eDuPont FilmTec XLE-4021 4\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-start=\"2027\" data-end=\"2095\"\u003eperfect solution for energy-efficient reverse osmosis filtration\u003c\/strong\u003e, offering \u003cstrong data-start=\"2106\" data-end=\"2190\"\u003ehigh water production, reduced operating costs, and superior contaminant removal\u003c\/strong\u003e for industrial and commercial applications.\u003c\/p\u003e\n\u003cp data-start=\"2238\" data-end=\"2285\"\u003e \u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938371817712,"sku":null,"price":265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_2123ff17-49ae-4aeb-be4c-24de959c9db8.png?v=1777062239"},{"product_id":"espa4-ld-4040","title":"Hydranautics ESPA4 LD 4040 – 4\" Reverse Osmosis Membrane","description":"\u003cp data-start=\"589\" data-end=\"1134\"\u003eThe \u003cstrong data-start=\"593\" data-end=\"623\"\u003eHydranautics ESPA4 LD 4040\u003c\/strong\u003e is a high-performance \u003cstrong data-start=\"646\" data-end=\"673\"\u003e4\" replacement membrane\u003c\/strong\u003e, engineered for \u003cstrong data-start=\"690\" data-end=\"738\"\u003elow-energy reverse osmosis (RO) applications\u003c\/strong\u003e that require \u003cstrong data-start=\"752\" data-end=\"806\"\u003ehigh salt rejection with reduced operational costs\u003c\/strong\u003e. Designed with \u003cstrong data-start=\"822\" data-end=\"858\"\u003eLow Differential (LD) Technology\u003c\/strong\u003e, this membrane minimizes \u003cstrong data-start=\"884\" data-end=\"907\"\u003efouling and scaling\u003c\/strong\u003e, improving \u003cstrong data-start=\"919\" data-end=\"968\"\u003esystem efficiency and extending membrane life\u003c\/strong\u003e. Ideal for \u003cstrong data-start=\"980\" data-end=\"1037\"\u003eindustrial, commercial, and municipal water treatment\u003c\/strong\u003e, the \u003cstrong data-start=\"1043\" data-end=\"1060\"\u003eESPA4 LD 4040\u003c\/strong\u003e ensures \u003cstrong data-start=\"1069\" data-end=\"1131\"\u003ehigh-purity water production with lower energy consumption\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"1136\" data-end=\"1159\"\u003e\u003cstrong data-start=\"1140\" data-end=\"1157\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1160\" data-end=\"2177\"\u003e✔️ \u003cstrong data-start=\"1163\" data-end=\"1178\"\u003e4\" Diameter\u003c\/strong\u003e – Standard size for mid-capacity reverse osmosis systems\u003cbr data-start=\"1235\" data-end=\"1238\"\u003e✔️ \u003cstrong data-start=\"1241\" data-end=\"1268\"\u003eHydranautics Technology\u003c\/strong\u003e – Industry-leading membrane for high-efficiency desalination\u003cbr data-start=\"1329\" data-end=\"1332\"\u003e✔️ \u003cstrong data-start=\"1335\" data-end=\"1364\"\u003eLow-Energy (ESPA4) Design\u003c\/strong\u003e – Optimized for lower operating pressure, reducing energy costs\u003cbr data-start=\"1428\" data-end=\"1431\"\u003e✔️ \u003cstrong data-start=\"1434\" data-end=\"1479\"\u003eLow Differential Pressure (LD) Technology\u003c\/strong\u003e – Minimizes fouling, scaling, and maintenance requirements\u003cbr data-start=\"1538\" data-end=\"1541\"\u003e✔️ \u003cstrong data-start=\"1544\" data-end=\"1567\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes dissolved solids, contaminants, and impurities\u003cbr data-start=\"1636\" data-end=\"1639\"\u003e✔️ \u003cstrong data-start=\"1642\" data-end=\"1672\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Delivers high water output while maintaining energy efficiency\u003cbr data-start=\"1737\" data-end=\"1740\"\u003e✔️ \u003cstrong data-start=\"1743\" data-end=\"1782\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Ensures durability and long-term filtration performance\u003cbr data-start=\"1840\" data-end=\"1843\"\u003e✔️ \u003cstrong data-start=\"1846\" data-end=\"1897\"\u003eIndustrial, Commercial \u0026amp; Municipal Applications\u003c\/strong\u003e – Ideal for drinking water purification, wastewater reclamation, and process water treatment\u003cbr data-start=\"1990\" data-end=\"1993\"\u003e✔️ \u003cstrong data-start=\"1996\" data-end=\"2023\"\u003eReliable \u0026amp; Long-Lasting\u003c\/strong\u003e – Designed for extended membrane life with minimal maintenance\u003cbr data-start=\"2086\" data-end=\"2089\"\u003e✔️ \u003cstrong data-start=\"2092\" data-end=\"2126\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing RO systems\u003c\/p\u003e\n\u003cp data-start=\"2179\" data-end=\"2463\"\u003eThe \u003cstrong data-start=\"2183\" data-end=\"2237\"\u003eHydranautics ESPA4 LD 4040 4\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-start=\"2245\" data-end=\"2322\"\u003eideal solution for high-efficiency, low-energy reverse osmosis filtration\u003c\/strong\u003e, providing \u003cstrong data-start=\"2334\" data-end=\"2417\"\u003eoptimal water production, energy savings, and long-term operational reliability\u003c\/strong\u003e for industrial and commercial applications.\u003c\/p\u003e\n\u003cp data-start=\"2465\" data-end=\"2512\"\u003e \u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938371850480,"sku":null,"price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_99a8cc84-eb26-4581-9899-d8a0d8ce0bd4.png?v=1777062240"},{"product_id":"bw30-pro-400-34","title":"BW30 PRO-400\/34","description":"\u003cp data-pm-slice=\"1 1 []\"\u003eThe BW30 PRO 400\/34 membrane offers a permeate flow rate of 11,000 gallons per day, ensuring high-capacity water treatment. Measuring 40 × 8 × 8 inches, it achieves an average sodium chloride rejection rate of 99.60%, delivering reliable and efficient purification performance for advanced reverse osmosis systems.\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938372276464,"sku":null,"price":540.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_0e048a03-2e45-4901-85e0-c3be61b6b2be.png?v=1777062245"},{"product_id":"cpa3-8","title":"CPA3-8","description":"\u003cp data-pm-slice=\"1 1 []\"\u003eQuality membranes, affordable prices\u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938372505840,"sku":null,"price":565.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_5061040f-e42d-4231-8392-b5a3f163417f.png?v=1777062248"},{"product_id":"esna1-lf-ld","title":"Hydranautics ESNA1-LF-LD Nanofiltration Membrane Element","description":"\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eESNA1-LF-LD\u003c\/strong\u003e is a high-performance, \u003cstrong\u003elow-fouling nanofiltration (NF)\u003c\/strong\u003e membrane from Hydranautics (a Nitto Group Company), engineered for ultra-low-pressure operation while delivering excellent softening and selective contaminant removal. As part of the advanced ESNA series, it combines patented \u003cstrong\u003eLow Differential Pressure (LD™)\u003c\/strong\u003e technology with a composite polyamide membrane to achieve superior energy efficiency and long-term reliability in brackish water and surface water treatment applications.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eFeaturing a patented 34 mil feed spacer with biostatic properties, the ESNA1-LF-LD minimizes colloidal fouling, reduces pressure drop, and enhances cleanability — resulting in fewer cleanings, extended membrane life, and lower overall operating costs.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Performance Specifications (8\" x 40\" element):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow\u003c\/strong\u003e: 9,500 gpd (36.0 m³\/day)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCaCl₂ Rejection\u003c\/strong\u003e: 93% (88% minimum \/ 97% maximum)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExpected Calcium Rejection\u003c\/strong\u003e: ~96% in typical 500 ppm well water at 13 gfd flux\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Membrane Area\u003c\/strong\u003e: 400 ft² (37.2 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Spacer\u003c\/strong\u003e: 34 mil (0.864 mm) with biostatic agent\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFor the 4\" x 40\" (ESNA1-LF-LD-4040) variant:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow\u003c\/strong\u003e: 1,900 gpd (7.2 m³\/day)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Membrane Area\u003c\/strong\u003e: 80 ft² (7.43 m²)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eTested under standard conditions (500 ppm CaCl₂ solution, 75 psi applied pressure, 77°F \/ 25°C, 15% recovery), this membrane provides \u003cstrong\u003e50–90% overall salt rejection\u003c\/strong\u003e while excelling at the removal of divalent ions (hardness), natural organic matter (NOM), TOC, color, pesticides, bacteria, and viruses.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eIdeal Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMunicipal drinking water softening and treatment\u003c\/li\u003e\n\u003cli\u003eSurface water or well water purification\u003c\/li\u003e\n\u003cli\u003eOrganics, PFAS, and pesticide removal\u003c\/li\u003e\n\u003cli\u003eIndustrial process water softening\u003c\/li\u003e\n\u003cli\u003eWastewater reclamation and high-recovery systems\u003c\/li\u003e\n\u003cli\u003eFood \u0026amp; beverage, power generation, and other facilities requiring partial demineralization without full RO-level desalination\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eThe ultra-low operating pressure (often under 100 psi in real-world conditions) translates to significant \u003cstrong\u003eenergy savings\u003c\/strong\u003e, reduced pump requirements, and lower installation\/operating costs compared to traditional brackish water RO membranes. Its low-fouling design makes it particularly effective in challenging feedwaters with higher fouling potential.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eOperating Limits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMaximum Applied Pressure: 600 psig (4.14 MPa)\u003c\/li\u003e\n\u003cli\u003eMaximum Operating Temperature: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003epH Range (Continuous): 2–10 (Cleaning: 1–13)\u003c\/li\u003e\n\u003cli\u003eMaximum Chlorine Concentration: \u0026lt;0.1 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eSupplied complete with brine seal, interconnector, and O-rings for straightforward installation in standard pressure vessels.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eWhen your system demands efficient hardness reduction, high organics removal, and minimal energy use without the need for full reverse osmosis, the \u003cstrong\u003eHydranautics ESNA1-LF-LD\u003c\/strong\u003e delivers outstanding performance and value. Backed by Hydranautics’ decades of innovation in membrane technology, it offers stable, long-term operation with reduced maintenance — making it a preferred choice for cost-effective, high-quality water production.\u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938372571376,"sku":null,"price":672.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/9BNPY.jpg?v=1776309669"},{"product_id":"xle-2540","title":"Filmtec XLE PRO-2540 2.5\" Membrane","description":"\u003cp\u003eIntroducing the Filmtex XLE 2540 3\" Membrane, featuring a high performance 850 GPD filtration rate and industry-leading 99% stabilized salt rejection. Improve your water quality with confidence and efficiency using this advanced membrane.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/Dow-Filmtec-XLE-2540.pdf?v=1743181987\" target=\"_blank\" title=\"Download XLE 2540 Datasheet\" rel=\"noopener\"\u003eDownload XLE 2540 Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938372767984,"sku":null,"price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_c717220d-6cde-4684-ae53-188d9359c6a0.png?v=1777062252"},{"product_id":"dupont-filmtec-bw30xfrle-400-34i","title":"DuPont FilmTec™ BW30XFRLE-400\/34i Extra Fouling Resistant Low Energy Brackish Water RO Membrane – 8\" x 40\"","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eDuPont FilmTec™ BW30XFRLE-400\/34i Extra Fouling Resistant Low Energy Brackish Water Reverse Osmosis Membrane – 8\" x 40\" with iLEC™ Interlocking End Caps | 11,500 GPD\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eFilmTec™ BW30XFRLE-400\/34i\u003c\/strong\u003e is DuPont’s advanced \u003cstrong\u003eextra fouling resistant, low energy\u003c\/strong\u003e brackish water RO membrane, specifically engineered for challenging feed waters and wastewater reuse applications where traditional elements foul quickly. It combines excellent salt rejection with \u003cstrong\u003eup to 30% lower energy consumption\u003c\/strong\u003e than standard pressure elements, while delivering superior fouling resistance and the industry’s widest cleaning pH range for unmatched durability and cleanability.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eWith a \u003cstrong\u003e400 ft² active area\u003c\/strong\u003e, thick \u003cstrong\u003e34 mil low differential pressure (LDP) feed spacer\u003c\/strong\u003e, and innovative \u003cstrong\u003eiLEC™ interlocking end caps\u003c\/strong\u003e, this element minimizes O-ring leaks, reduces telescoping risk, lowers operating costs, and simplifies installation in large-scale systems. Ideal for municipal and industrial plants producing over 10 GPM of permeate, the BW30XFRLE-400\/34i provides reliable high-purity water with reduced cleaning frequency, extended membrane life, and lower total cost of ownership — even in fouling-prone waters.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra Fouling Resistance\u003c\/strong\u003e — Optimized design with 34 mil LDP feed spacer handles challenging brackish waters, wastewater reuse, and higher-fouling sources better than standard elements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Energy Operation\u003c\/strong\u003e — Achieves strong performance with up to \u003cstrong\u003e30% lower pressures\u003c\/strong\u003e, reducing electricity and pumping costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Rejection Performance\u003c\/strong\u003e — \u003cstrong\u003e99.3% stabilized salt rejection\u003c\/strong\u003e (minimum 99.1%) plus excellent removal of silica, nitrate, and ammonium for superior permeate quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eiLEC™ Interlocking End Caps\u003c\/strong\u003e — Reduces leaks, improves water quality consistency, and lowers maintenance expenses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Cleanability \u0026amp; Durability\u003c\/strong\u003e — Widest pH cleaning range (1–13 short-term) combined with robust chemical tolerance for the most effective cleaning and longest element life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiberglass Outer Wrap\u003c\/strong\u003e — Ensures structural strength and reliability in high-flow industrial setups.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eIdeal Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMunicipal drinking water and wastewater reuse\u003c\/li\u003e\n\u003cli\u003eIndustrial water demineralization and utility water\u003c\/li\u003e\n\u003cli\u003eFood \u0026amp; beverage processing\u003c\/li\u003e\n\u003cli\u003eChallenging brackish water sources and water reclamation projects\u003c\/li\u003e\n\u003cli\u003eLarge commercial and industrial RO systems (\u0026gt;10 GPM permeate)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Area\u003c\/strong\u003e: 400 ft² (37 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Spacer Thickness\u003c\/strong\u003e: 34 mil (LDP – Low Differential Pressure)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow Rate\u003c\/strong\u003e: 11,500 GPD (43.5 m³\/d) nominal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStabilized Salt Rejection\u003c\/strong\u003e: 99.3%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Salt Rejection\u003c\/strong\u003e: 99.1%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMembrane Type\u003c\/strong\u003e: Polyamide Thin-Film Composite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 40\" Length × 8\" Diameter (net length when interlocked: 40\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Pressure\u003c\/strong\u003e: 600 psi (41 bar)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature\u003c\/strong\u003e: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH Range (Continuous)\u003c\/strong\u003e: 2–11 | Short-Term Cleaning: 1–13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pressure Drop\u003c\/strong\u003e: 15 psi per element \/ 50 psi per vessel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Feed Flow\u003c\/strong\u003e: 75 GPM (17 m³\/h)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Chlorine Tolerance\u003c\/strong\u003e: \u0026lt;0.1 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Feed SDI\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eTest conditions: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 8, 15% recovery.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBacked by DuPont’s technical expertise and decades of innovation, the \u003cstrong\u003eBW30XFRLE-400\/34i\u003c\/strong\u003e is the smart choice for plant operators dealing with difficult waters who need reliable performance, lower energy use, and reduced maintenance.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e Always use proper pretreatment and follow DuPont FilmTec™ design guidelines for best long-term results. Pair with DuPont technical support for optimal system configuration.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eUpgrade your RO system today with the FilmTec™ BW30XFRLE-400\/34i — experience advanced anti-fouling protection, low-energy efficiency, and consistent high-purity output.\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938373030128,"sku":null,"price":590.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/BW30.jpg?v=1775874255"},{"product_id":"filmtec-hsro-4040-ff","title":"Filmtec HSRO-4040 FF","description":"\u003cp data-pm-slice=\"1 1 []\"\u003eQuality membranes, affordable prices\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938373488880,"sku":null,"price":468.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/HSRO-4040-FFImage.jpg?v=1751315132"},{"product_id":"espa2-ld-max","title":"ESPA2-LD MAX Reverse Osmosis Membrane – Low Energy, Low Fouling, High Productivity","description":"\u003cp dir=\"auto\"\u003eCombine the best of low-energy performance, fouling resistance, and maximum output with the \u003cstrong\u003eHydranautics ESPA2-LD MAX\u003c\/strong\u003e. This premium 8\" x 40\" RO membrane features expanded active area, LD Technology for reduced fouling, and exceptional energy efficiency — making it ideal for large-scale brackish water systems demanding high productivity at lower pressures.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Specifications \u0026amp; Performance\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow\u003c\/strong\u003e: 12,000 gallons per day (45.4 m³\/day)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt Rejection\u003c\/strong\u003e: 99.6% (99.5% minimum)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Membrane Area\u003c\/strong\u003e: 440 ft² (40.9 m²) — MAX design for higher throughput\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Spacer\u003c\/strong\u003e: Optimized for low differential pressure and fouling resistance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Conditions\u003c\/strong\u003e: 1,500 ppm NaCl, 150 psig (1.03 MPa) applied pressure, 77°F (25°C), 15% recovery, pH 6.5–7.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Low Fouling Spiral Wound \u003cstrong\u003eMembrane Polymer\u003c\/strong\u003e: Composite Polyamide \u003cstrong\u003eDimensions\u003c\/strong\u003e: 8\" diameter x 40\" length (includes brine seal, interconnector, and O-rings)\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Benefits\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eMAX Productivity\u003c\/strong\u003e: Larger active membrane area allows higher permeate flow or fewer elements\/vessels, reducing capital costs and system footprint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLD Low-Fouling Technology\u003c\/strong\u003e: Minimizes colloidal and biological fouling for longer operating cycles, fewer cleanings, and extended membrane life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Efficient\u003c\/strong\u003e: Low-pressure operation cuts pumping costs significantly while maintaining strong rejection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Limits\u003c\/strong\u003e:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMax Applied Pressure: 600 psig (4.14 MPa)\u003c\/li\u003e\n\u003cli\u003eMax Operating Temperature: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003epH Range (Continuous \/ Cleaning): 2–10.6 (1–12)\u003c\/li\u003e\n\u003cli\u003eMax Feedwater Turbidity: 1.0 NTU\u003c\/li\u003e\n\u003cli\u003eMax Feedwater SDI (15 min): 5.0\u003c\/li\u003e\n\u003cli\u003eMax Feed Flow: 75 gpm (17.0 m³\/h)\u003c\/li\u003e\n\u003cli\u003eMax Pressure Drop per Element: 15 psi\u003c\/li\u003e\n\u003cli\u003eChlorine Tolerance: \u0026lt; 0.1 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMunicipal drinking water and wastewater reclamation plants\u003c\/li\u003e\n\u003cli\u003eIndustrial process water and boiler feed systems\u003c\/li\u003e\n\u003cli\u003eLarge commercial RO installations focused on energy savings and high output\u003c\/li\u003e\n\u003cli\u003eSystems with variable or challenging brackish feeds requiring fouling resistance\u003c\/li\u003e\n\u003cli\u003eAny application benefiting from lower operating pressures and reduced maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003ePremium Quality \u0026amp; Packaging\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eSupplied in protective polyethylene packaging with sodium meta-bisulfite solution, ready for reliable long-term performance in continuous-duty systems.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e: Competitive at KnappRO Chicago (contact for quotes on volume or system packages).\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eESPA2-LD MAX\u003c\/strong\u003e delivers the ultimate balance of high rejection, maximum flow, low energy use, and fouling resistance — a top-tier choice for efficient, high-volume brackish water treatment.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eQuestions about integrating this into your array or comparing it to other ESPA\/CPA models? Let us know — we're happy to help optimize your setup.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eKnappRO Chicago — Quality Hydranautics RO membranes, affordable pricing, and dedicated support for your water treatment success.\u003c\/em\u003e\u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938373554416,"sku":null,"price":630.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_33ca2a92-9a72-4465-aef7-8fd6dab16a7a.png?v=1777062263"},{"product_id":"xle-440","title":"DuPont FilmTec™ XLE-440 Extra Low Energy Brackish Water RO Membrane – 8\" x 40\"","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eDuPont FilmTec™ XLE-440 Extra Low Energy Brackish Water Reverse Osmosis Membrane – 8\" x 40\" | 14,000 GPD High Productivity\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eFilmTec™ XLE-440\u003c\/strong\u003e is DuPont’s flagship \u003cstrong\u003eextra low energy\u003c\/strong\u003e brackish water RO membrane, engineered to deliver exceptional permeate flow and high-quality water at significantly lower operating pressures. Perfect for large-scale municipal drinking water systems, industrial utility water, and water reuse applications, this high-productivity element helps you reduce energy costs, lower pumping requirements, and minimize capital expenditure without sacrificing performance.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eWith an impressive \u003cstrong\u003e440 ft² active membrane area\u003c\/strong\u003e and a \u003cstrong\u003e28 mil feed spacer\u003c\/strong\u003e, the XLE-440 produces up to \u003cstrong\u003e14,000 gallons per day (53 m³\/d)\u003c\/strong\u003e while achieving \u003cstrong\u003e99.0% stabilized salt rejection\u003c\/strong\u003e — all at just \u003cstrong\u003e125 psi\u003c\/strong\u003e test pressure. This makes it one of the lowest-pressure, highest-flow 8\" brackish elements available, ideal for systems with good pretreatment and a focus on energy efficiency.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtra Low Energy Operation\u003c\/strong\u003e — Runs effectively at lower pressures (around 100–150 psi in many systems), reducing electricity consumption and pump size compared to standard brackish membranes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Productivity\u003c\/strong\u003e — Massive 440 ft² active area delivers 14,000 GPD nominal permeate flow, allowing fewer elements per vessel and lower system CAPEX.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent Permeate Quality\u003c\/strong\u003e — 99.0% stabilized salt rejection (minimum 97.0%) with strong performance on silica, nitrates, and ammonium.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Fouling Resistance \u0026amp; Cleanability\u003c\/strong\u003e — Wide pH cleaning range (1–13) and robust polyamide thin-film composite construction for longer membrane life and fewer cleanings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiberglass Outer Wrap\u003c\/strong\u003e — Provides durability and structural integrity in high-flow industrial setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Reliability\u003c\/strong\u003e — Backed by DuPont’s decades of RO innovation and technical support.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eIdeal Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMunicipal drinking water production\u003c\/li\u003e\n\u003cli\u003eIndustrial demineralization and utility water\u003c\/li\u003e\n\u003cli\u003eFood \u0026amp; beverage processing\u003c\/li\u003e\n\u003cli\u003eWater reuse and reclamation projects\u003c\/li\u003e\n\u003cli\u003eLarge commercial RO systems producing \u0026gt;10 GPM of permeate\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Area\u003c\/strong\u003e: 440 ft² (41 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Spacer Thickness\u003c\/strong\u003e: 28 mil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow Rate\u003c\/strong\u003e: 14,000 GPD (53 m³\/d) nominal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStabilized Salt Rejection\u003c\/strong\u003e: 99.0%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Salt Rejection\u003c\/strong\u003e: 97.0%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMembrane Type\u003c\/strong\u003e: Polyamide Thin-Film Composite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 40\" Length × 8\" Diameter (fits nominal 8\" pressure vessels)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Pressure\u003c\/strong\u003e: 600 psi (41 bar)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature\u003c\/strong\u003e: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH Range (Continuous)\u003c\/strong\u003e: 2–11 | Short-Term Cleaning: 1–13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pressure Drop\u003c\/strong\u003e: 15 psi per element \/ 50 psi per vessel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Feed Flow\u003c\/strong\u003e: 75 GPM (17 m³\/h)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Chlorine Tolerance\u003c\/strong\u003e: \u0026lt;0.1 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Feed SDI\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eTest conditions: 2,000 ppm NaCl, 125 psi (8.6 bar), 77°F (25°C), pH 8, 15% recovery.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eXLE-440\u003c\/strong\u003e is the smart choice when you want maximum output with minimum energy input. Pair it with proper pretreatment and DuPont design guidelines for optimal long-term performance and lowest total cost of ownership.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eUpgrade your RO system today with the FilmTec™ XLE-440 — experience high-flow, low-energy reverse osmosis at its best.\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938374504688,"sku":null,"price":620.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_996fb7f1-4581-46d4-b540-4ea88d89bb62.png?v=1777062274"},{"product_id":"lc-le-4040","title":"Filmtec LC LE PRO-4040 4\" Membrane Element","description":"\u003cp\u003eEnhance your water purification system with the Filmtec LC LE PRO 4040 4\" Membrane Element. This powerful element boasts a high 2,600 GPD rate and an impressive 99.5% stabilized salt rejection, resulting in pure, clean water for your daily needs. Trust the industry expertise of Filmtec for top-quality filtration. \u003c\/p\u003e\n\u003cp\u003e\u003ca title=\"Download LC LE PRO 4040 Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/RO-FilmTec-LC-LE-PRO-4040-PDS-45-D01670-en_1.pdf?v=1743181524\"\u003eDownload LC LE PRO 4040 Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938374996208,"sku":null,"price":220.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_2405a0bf-7c3d-46fd-baca-30cdd14554a9.png?v=1777062277"},{"product_id":"filmtec-bw30-400-34i","title":"Filmtec BW30 PRO-400\/34i","description":"\u003cp dir=\"auto\"\u003eHere's a rich, persuasive, and \u003cstrong\u003eSEO-optimized\u003c\/strong\u003e Shopify product description for the \u003cstrong\u003eDuPont FilmTec™ BW30 PRO-400\/34i\u003c\/strong\u003e reverse osmosis membrane.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eLong Description (Main Product Section)\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eDuPont FilmTec™ BW30 PRO-400\/34i High Rejection Brackish Water RO Membrane – 8\" x 40\" with iLEC™ Interlocking End Caps | 11,000 GPD\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eFilmTec™ BW30 PRO-400\/34i\u003c\/strong\u003e is DuPont’s premium high-performance brackish water reverse osmosis membrane, engineered for large-scale municipal and industrial systems that demand consistent high-purity permeate with maximum efficiency and reliability.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBuilding on the legendary BW30 platform with decades of proven field performance, this next-generation element delivers \u003cstrong\u003ehigher flow\u003c\/strong\u003e, \u003cstrong\u003esuperior salt rejection\u003c\/strong\u003e, and \u003cstrong\u003eenhanced fouling resistance\u003c\/strong\u003e. The innovative \u003cstrong\u003eiLEC™ interlocking end caps\u003c\/strong\u003e minimize O-ring leaks, reduce telescoping risk, lower operating costs, and simplify installation — making it the smart choice for new builds and retrofits.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eWith a thick \u003cstrong\u003e34 mil feed spacer\u003c\/strong\u003e, it provides excellent protection against fouling and scaling, even with challenging brackish feed waters. Ideal for systems producing over 10 GPM of permeate, the BW30 PRO-400\/34i helps you achieve lower energy consumption, reduced cleaning frequency, and longer membrane life.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Productivity \u0026amp; Rejection\u003c\/strong\u003e — Nominal permeate flow of \u003cstrong\u003e11,000 GPD (42 m³\/d)\u003c\/strong\u003e with \u003cstrong\u003e99.6% stabilized salt rejection\u003c\/strong\u003e (minimum 99.4%) at standard test conditions (2,000 ppm NaCl, 225 psi).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eiLEC™ Interlocking End Caps\u003c\/strong\u003e — Reduces O-ring related leaks and telescoping, improving water quality and lowering maintenance costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Fouling Resistance\u003c\/strong\u003e — 34 mil feed spacer thickness improves cleaning effectiveness and extends element life in fouling-prone waters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiberglass Outer Wrap\u003c\/strong\u003e — Provides superior structural strength for high-pressure industrial operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust \u0026amp; Durable\u003c\/strong\u003e — Polyamide thin-film composite construction with wide pH tolerance (2–11 continuous, 1–13 for cleaning) and excellent durability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Industry Standard\u003c\/strong\u003e — Replaces and improves upon previous BW30-400 and BW30-400\/34i generations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eIdeal Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMunicipal drinking water purification\u003c\/li\u003e\n\u003cli\u003eIndustrial demineralization (power generation, steel \u0026amp; metal processing, chemical \u0026amp; petrochemical)\u003c\/li\u003e\n\u003cli\u003eFood \u0026amp; beverage production\u003c\/li\u003e\n\u003cli\u003eBrackish water desalination and water reuse projects\u003c\/li\u003e\n\u003cli\u003eLarge commercial and institutional RO systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Area\u003c\/strong\u003e: 400 ft² (37 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Spacer\u003c\/strong\u003e: 34 mil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow Rate\u003c\/strong\u003e: 11,000 GPD (42 m³\/d) nominal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStabilized Salt Rejection\u003c\/strong\u003e: 99.6%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMembrane Type\u003c\/strong\u003e: Polyamide Thin-Film Composite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 40\" Length × 8\" Diameter (net length when interlocked: 40\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Pressure\u003c\/strong\u003e: 600 psi (41 bar)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature\u003c\/strong\u003e: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pressure Drop\u003c\/strong\u003e: 15 psi per element \/ 50 psi per vessel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH Range (Continuous)\u003c\/strong\u003e: 2–11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Chlorine Tolerance\u003c\/strong\u003e: \u0026lt;0.1 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Feed SDI\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Feed Flow\u003c\/strong\u003e: 75 GPM (17 m³\/h)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eBacked by DuPont’s world-class quality and innovation, the \u003cstrong\u003eBW30 PRO-400\/34i\u003c\/strong\u003e delivers stable, long-term performance that minimizes total cost of ownership while maximizing permeate quality.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e For best results, always use proper pretreatment, follow DuPont design guidelines, and pair with compatible FilmTec™ elements in your pressure vessels.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eUpgrade your RO system with the FilmTec™ BW30 PRO-400\/34i today — experience higher rejection, better fouling resistance, and lower operating costs.\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938375520496,"sku":null,"price":560.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_eab05774-910d-4162-a6a6-c93f378d22c3.png?v=1777062281"},{"product_id":"espa4-ld","title":"ESPA4-LD Reverse Osmosis Membrane – Ultra Low Energy, Low Fouling Brackish Water Element","description":"\u003cp dir=\"auto\"\u003eUnlock maximum energy savings with the \u003cstrong\u003eHydranautics ESPA4-LD\u003c\/strong\u003e, an advanced 8\" x 40\" low-pressure RO membrane from the ESPA series. Optimized for very low feed pressures and featuring LD (Low Differential) fouling-resistant technology, this element is perfect for brackish water applications where minimizing operating costs and extending cleaning intervals are priorities.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Specifications \u0026amp; Performance\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow\u003c\/strong\u003e: 12,000 gallons per day (45.4 m³\/day)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt Rejection\u003c\/strong\u003e: 99.2% (99.0% minimum)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Membrane Area\u003c\/strong\u003e: 400 ft² (37.2 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Spacer\u003c\/strong\u003e: 34 mil (0.86 mm) — promotes low fouling\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Conditions\u003c\/strong\u003e: 500 ppm NaCl, \u003cstrong\u003e100 psig\u003c\/strong\u003e (0.7 MPa) applied pressure, 77°F (25°C), 15% recovery, pH 6.5–7.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Low Fouling Spiral Wound \u003cstrong\u003eMembrane Polymer\u003c\/strong\u003e: Composite Polyamide \u003cstrong\u003eDimensions\u003c\/strong\u003e: 8\" diameter x 40\" length (includes brine seal, interconnector, and O-rings)\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eStandout Advantages\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Pressure Operation\u003c\/strong\u003e: Performs at just 100 psi test pressure — one of the lowest in the lineup, drastically cutting energy use for pumps and overall system costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLD Fouling Resistance\u003c\/strong\u003e: Wider feed spacer and specialized design reduce colloidal and biofouling, leading to longer run times between cleanings and lower maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Productivity at Low TDS\u003c\/strong\u003e: Excellent for treating lower-salinity brackish water with reliable rejection and high flow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Limits\u003c\/strong\u003e:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMax Applied Pressure: 600 psig (4.14 MPa)\u003c\/li\u003e\n\u003cli\u003eMax Operating Temperature: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003epH Range (Continuous \/ Cleaning): 2–10 (1–12)\u003c\/li\u003e\n\u003cli\u003eMax Feedwater Turbidity: 1.0 NTU\u003c\/li\u003e\n\u003cli\u003eMax Feedwater SDI (15 min): 5.0\u003c\/li\u003e\n\u003cli\u003eMax Feed Flow: 85 gpm (19.3 m³\/h)\u003c\/li\u003e\n\u003cli\u003eMax Pressure Drop per Element: 15 psi\u003c\/li\u003e\n\u003cli\u003eChlorine Tolerance: \u0026lt; 0.1 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMunicipal and industrial brackish water desalination with energy constraints\u003c\/li\u003e\n\u003cli\u003eLow-TDS well water treatment for drinking or process use\u003c\/li\u003e\n\u003cli\u003eWastewater reclamation and reuse systems\u003c\/li\u003e\n\u003cli\u003eCommercial RO plants seeking lowest possible operating pressures\u003c\/li\u003e\n\u003cli\u003eInstallations with conventional pretreatment needing strong anti-fouling performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eReliable \u0026amp; Ready-to-Use\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eEach element is packaged in a sealed polyethylene bag with sodium meta-bisulfite preservative for optimal shelf life and immediate performance upon installation.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e: Competitive through KnappRO Chicago (inquire for volume pricing or current availability).\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eESPA4-LD\u003c\/strong\u003e represents the pinnacle of low-energy RO technology — delivering high output with minimal power input and reduced fouling risk. A smart choice for sustainable, cost-effective water treatment.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eNeed help selecting the right ESPA model for your system or comparing it to others in the lineup? We're here to assist.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eKnappRO Chicago — Quality Hydranautics membranes, affordable prices, and expert guidance.\u003c\/em\u003e\u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938375717104,"sku":null,"price":585.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_ce6f70ad-74a8-4d46-ae4d-00c549747906.png?v=1777062285"},{"product_id":"hydranautics-cpa2-4040","title":"Hydranautics CPA2 4040","description":"\u003cp\u003eCPA2 4040\u003cbr\u003e\u003cimg\u003eSalt Rejection 99.5%\u003c\/p\u003e\n\u003cp\u003eSpiral Bound Composite Polyamide\u003c\/p\u003e\n\u003cp\u003eMembrane Active Area: 85 ft.\u003c\/p\u003e\n\u003cp\u003e40\" length\u003c\/p\u003e\n\u003cp\u003e4\" diameter\u003c\/p\u003e\n\u003cp\u003e8 pounds\u003cimg\u003e\u003cimg\u003e\u003cimg\u003e\u003cimg\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938375946480,"sku":null,"price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_f72c00f9-7cbd-440b-857f-468c42392e74.png?v=1777062285"},{"product_id":"hsro-390-ff","title":"HSRO-390-FF FilmTec Heat-Sanitizable Reverse Osmosis Membrane – Sanitary Full-Fit Design","description":"\u003cp dir=\"auto\"\u003eDeliver high-purity water with confidence using the \u003cstrong\u003eDuPont FilmTec™ HSRO-390-FF\u003c\/strong\u003e, a premium 8\" x 40\" heat-sanitizable RO membrane engineered for the most demanding sanitary applications. This full-fit (FF) element combines outstanding rejection and high flow with the unique ability to withstand hot water sanitization — eliminating chemical sanitizers and reducing operational complexity.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Specifications \u0026amp; Performance\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow\u003c\/strong\u003e: 9,000 gpd (34 m³\/day) nominal (tested at 2,000 ppm NaCl, 150 psi)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStabilized Salt Rejection\u003c\/strong\u003e: 99.5%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Membrane Area\u003c\/strong\u003e: 390 ft² (36 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Full-Fit Sanitary Style (minimizes dead zones)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Conditions\u003c\/strong\u003e: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 8, 15% recovery\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eMembrane Type\u003c\/strong\u003e: Polyamide Thin-Film Composite \u003cstrong\u003eDimensions\u003c\/strong\u003e: 8\" diameter x 40\" length\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eExceptional Features\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat Sanitizable\u003c\/strong\u003e: Withstands sanitization up to 185°F (85°C) at low pressure — ideal for maintaining sterility without harsh chemicals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Flow \u0026amp; Efficiency\u003c\/strong\u003e: High active area supports lower flux operation (for reduced fouling) or fewer elements for the same output, saving on capital and footprint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSanitary Full-Fit Design\u003c\/strong\u003e: Reduces stagnant areas where bacteria can accumulate, meeting stringent FDA-compliant requirements for high-purity systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Operating Limits\u003c\/strong\u003e:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMax Operating Pressure: 600 psi (41 bar)\u003c\/li\u003e\n\u003cli\u003eMax Operating Temperature: 113°F (45°C) continuous\u003c\/li\u003e\n\u003cli\u003eMax Sanitization Temperature: 185°F (85°C)\u003c\/li\u003e\n\u003cli\u003epH Range (Continuous): 2–11\u003c\/li\u003e\n\u003cli\u003eShort-Term Cleaning pH: 1–12\u003c\/li\u003e\n\u003cli\u003eMax SDI: 5.0\u003c\/li\u003e\n\u003cli\u003eFree Chlorine Tolerance: \u0026lt; 0.1 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003ePrimary Applications\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003ePharmaceutical, medical, and biotechnology purified water\u003c\/li\u003e\n\u003cli\u003eFood \u0026amp; dairy process water and permeate polishing\u003c\/li\u003e\n\u003cli\u003eMedical\/dialysis water systems\u003c\/li\u003e\n\u003cli\u003eAny sanitary or high-purity RO application requiring heat sanitization and low extractables\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eWhy FilmTec HSRO-390-FF?\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eManufactured on advanced automated lines for consistent quality, this element provides reliable high-purity output with the flexibility and durability needed for critical sanitary processes. Pre-conditioning with hot water is recommended for optimal long-term performance.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e: Competitive pricing at KnappRO Chicago (contact for current quote or bulk orders).\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eElevate your sanitary water treatment system with the \u003cstrong\u003eHSRO-390-FF\u003c\/strong\u003e — heat sanitizable, high-flow, and built for purity. Perfect for facilities where compliance, cleanliness, and efficiency matter most.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eReach out for compatibility guidance, system design support, or to discuss your specific feedwater challenges.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eKnappRO Chicago — Premium RO membranes from leading brands like DuPont FilmTec, at accessible prices with knowledgeable support.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eQuality membranes, affordable prices\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938376110320,"sku":null,"price":1205.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/Highsalinityrofilterstockimage.png?v=1777062237"},{"product_id":"espa1-7","title":"ESPA1-7 Reverse Osmosis Membrane – Ultra Low Energy, High Permeability Brackish Water Element","description":"\u003cp dir=\"auto\"\u003eAchieve exceptional energy efficiency with the \u003cstrong\u003eHydranautics ESPA1-7\u003c\/strong\u003e, a high-productivity 8\" x 40\" low-pressure reverse osmosis membrane from the ESPA series. Designed for even lower feed pressures than the ESPA2 models, the ESPA1-7 offers higher permeability while delivering strong salt rejection — making it an outstanding choice for treating low-to-moderate TDS brackish water with minimal energy input.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Specifications \u0026amp; Performance\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow\u003c\/strong\u003e: 12,000 gallons per day (45.4 m³\/day)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt Rejection\u003c\/strong\u003e: 99.4% (99.2% minimum)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Membrane Area\u003c\/strong\u003e: 400 ft² (37.2 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Conditions\u003c\/strong\u003e: 1,500 ppm NaCl, \u003cstrong\u003e150 psig\u003c\/strong\u003e (1.03 MPa) applied pressure, 77°F (25°C), 15% recovery, pH 6.5–7.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Spiral Wound \u003cstrong\u003eMembrane Polymer\u003c\/strong\u003e: Composite Polyamide \u003cstrong\u003eDimensions\u003c\/strong\u003e: 8\" diameter x 40\" length (includes brine seal, interconnector, and O-rings)\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eWhy Choose the ESPA1-7?\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-Low Energy Operation\u003c\/strong\u003e: Requires the lowest feed pressures in the ESPA lineup, translating to substantial savings on pumping costs and overall system energy use.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Permeability\u003c\/strong\u003e: Higher water flux compared to higher-rejection models, ideal for applications prioritizing volume output and efficiency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Reliability\u003c\/strong\u003e: Excellent performance on low-TDS brackish sources with consistent permeate quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Operating Limits\u003c\/strong\u003e:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMax Applied Pressure: 600 psig (4.14 MPa)\u003c\/li\u003e\n\u003cli\u003eMax Operating Temperature: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003epH Range (Continuous \/ Cleaning): 2–10 (1–12)\u003c\/li\u003e\n\u003cli\u003eMax Feedwater Turbidity: 1.0 NTU\u003c\/li\u003e\n\u003cli\u003eMax Feedwater SDI (15 min): 5.0\u003c\/li\u003e\n\u003cli\u003eMax Feed Flow: 75 gpm (17.0 m³\/h)\u003c\/li\u003e\n\u003cli\u003eMax Pressure Drop per Element: 15 psi\u003c\/li\u003e\n\u003cli\u003eChlorine Tolerance: \u0026lt; 0.1 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMunicipal potable water production from low-TDS brackish wells\u003c\/li\u003e\n\u003cli\u003eCommercial and light industrial water treatment\u003c\/li\u003e\n\u003cli\u003eWastewater reclamation and reuse systems\u003c\/li\u003e\n\u003cli\u003eAny RO setup where minimizing energy consumption is a top priority\u003c\/li\u003e\n\u003cli\u003ePolishing or primary treatment in facilities with lower-pressure infrastructure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eReady for Installation\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eSupplied in protective packaging with sodium meta-bisulfite solution to maintain element integrity until startup.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eESPA1-7\u003c\/strong\u003e is the go-to solution when you need maximum permeate production at the lowest possible pressures. Perfect for cost-conscious operations focused on efficiency.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBrowse our full Hydranautics collection or contact us for recommendations on the best membrane for your specific feedwater and system design.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eKnappRO Chicago — Quality membranes, affordable prices, expert support for your water treatment needs.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eQuality membranes, affordable prices\u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938376372464,"sku":null,"price":550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_f23c4f75-aa72-4ea8-bcd8-22615bc46d43.png?v=1777062288"},{"product_id":"bw30-2540","title":"BW30 PRO-2540","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFilmTec™ BW30 PRO-2540 Brackish Water Reverse Osmosis Membrane – 2.5\" x 40\" | 1,000 GPD\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eEngineered for superior performance in light industrial, commercial, and drinking water systems, the \u003cstrong\u003eDuPont FilmTec™ BW30 PRO-2540\u003c\/strong\u003e is the upgraded industry-standard RO membrane element that delivers exceptional water purity even under challenging feed water conditions.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBuilt on decades of proven FilmTec™ BW30 technology, this next-generation element offers \u003cstrong\u003ehigher flow rates\u003c\/strong\u003e, \u003cstrong\u003eimproved salt rejection\u003c\/strong\u003e, and \u003cstrong\u003eenhanced fouling resistance\u003c\/strong\u003e compared to previous generations. Whether you're producing high-quality permeate for bottling, food \u0026amp; beverage processing, pharmaceutical applications, or municipal drinking water, the BW30 PRO-2540 provides reliable, stable, long-term performance you can trust.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Rejection \u0026amp; Flow\u003c\/strong\u003e — Produces up to \u003cstrong\u003e1,000 gallons per day (3.8 m³\/d)\u003c\/strong\u003e with a stabilized salt rejection of \u003cstrong\u003e99.7%\u003c\/strong\u003e (minimum 99.5%) under standard test conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Fouling Protection\u003c\/strong\u003e — Designed to handle harsh feed waters with higher silt density, reducing cleaning frequency and extending membrane life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Fiberglass Outer Wrap\u003c\/strong\u003e — Hard-shell exterior provides extra structural strength for demanding commercial and light industrial systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry Shipping\u003c\/strong\u003e — Ships dry for extended shelf life, quick stabilization upon startup, and easier handling\/storage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Operating Range\u003c\/strong\u003e — Robust polyamide thin-film composite membrane tolerates pH 2–11 (continuous) and pH 1–13 for short-term cleaning. Maximum operating pressure: 600 psi. Maximum temperature: 113°F (45°C).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Standard 2.5\" Pressure Vessels\u003c\/strong\u003e — Perfect for compact systems producing less than 1 GPM.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eIdeal For:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eLight industrial RO systems\u003c\/li\u003e\n\u003cli\u003eCommercial drinking water production\u003c\/li\u003e\n\u003cli\u003eFood \u0026amp; beverage processing\u003c\/li\u003e\n\u003cli\u003eWater reuse and challenging brackish water sources\u003c\/li\u003e\n\u003cli\u003eSystems requiring stringent permeate quality\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Area\u003c\/strong\u003e: 28 ft² (2.6 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow Rate\u003c\/strong\u003e: 1,000 GPD (3.8 m³\/d)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStabilized Salt Rejection\u003c\/strong\u003e: 99.7%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMembrane Type\u003c\/strong\u003e: Polyamide Thin-Film Composite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 40\" Length x 2.5\" Diameter (nominal 2.5\" I.D. vessel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Feed Flow\u003c\/strong\u003e: 6 GPM (1.4 m³\/h)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pressure Drop\u003c\/strong\u003e: 15 psig (1.0 bar)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Chlorine Tolerance\u003c\/strong\u003e: \u0026lt;0.1 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum SDI\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number\u003c\/strong\u003e: 12081023 (replaces standard BW30-2540)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eBacked by DuPont’s reputation for quality and innovation, the \u003cstrong\u003eBW30 PRO-2540\u003c\/strong\u003e helps you achieve sustainable water solutions with lower operating costs and consistent high-quality output.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e For optimal system performance, always follow DuPont FilmTec™ design guidelines and use proper pretreatment.\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003ee prices\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938376470768,"sku":null,"price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_a6564098-2e54-45ec-a178-38441a418376.png?v=1777062291"},{"product_id":"hydranautics-cpa5-ld-4040","title":"Hydranautics CPA5 LD 4040","description":"\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eHydranautics CPA5-LD-4040\u003c\/strong\u003e is a premium \u003cstrong\u003e4x40 low fouling reverse osmosis membrane element\u003c\/strong\u003e engineered by Nitto Hydranautics for exceptional performance in brackish water treatment systems. As part of the renowned CPA series, this fourth-generation \u003cstrong\u003ecomposite polyamide RO membrane\u003c\/strong\u003e delivers outstanding salt rejection of \u003cstrong\u003e99.7%\u003c\/strong\u003e (minimum 99.5%) while producing up to \u003cstrong\u003e2,100 gallons per day\u003c\/strong\u003e (7.95 m³\/day) of high-purity permeate at just 225 psi (1.55 MPa) applied pressure under standard test conditions (1500 ppm NaCl, 77°F\/25°C, 15% recovery).\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eFeaturing \u003cstrong\u003eLow Fouling (LD) technology\u003c\/strong\u003e with a 34 mil (0.864 mm) feed spacer treated for enhanced resistance to colloidal and biofouling, the CPA5-LD-4040 offers an active membrane area of \u003cstrong\u003e80 ft² (7.43 m²)\u003c\/strong\u003e in a low-differential-pressure design. This translates to longer operating cycles, reduced cleaning frequency, lower energy consumption, and superior system efficiency compared to standard elements—ideal for applications where feedwater quality varies or pretreatment is conventional.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eKey performance highlights include:\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eHigh rejection of salts, silica, TOC, hardness, and nitrates for ultrapure water production\u003c\/li\u003e\n\u003cli\u003eMaximum applied pressure: \u003cstrong\u003e600 psig (4.14 MPa)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eOperating temperature up to \u003cstrong\u003e113°F (45°C)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003epH range: 2-11 continuous (1-13 cleaning)\u003c\/li\u003e\n\u003cli\u003eMaximum feedwater turbidity: \u003cstrong\u003e1 NTU\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eChlorine tolerance: \u003cstrong\u003e\u0026lt;0.1 ppm\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eBuilt with a durable fiberglass outer wrap, this \u003cstrong\u003e4-inch x 40-inch spiral-wound brackish water RO element\u003c\/strong\u003e excels in municipal drinking water desalination, well water treatment, boiler feedwater makeup, industrial process water, semiconductor ultrapure systems, and TDS reduction prior to ion exchange or other polishing steps.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eUpgrade your reverse osmosis system with the \u003cstrong\u003eHydranautics CPA5-LD-4040\u003c\/strong\u003e — the trusted choice for high-rejection, low-energy, low-fouling performance in demanding brackish RO applications. Search terms like \u003cstrong\u003eCPA5-LD-4040 RO membrane\u003c\/strong\u003e, \u003cstrong\u003eHydranautics 4x40 low fouling membrane\u003c\/strong\u003e, \u003cstrong\u003e2100 GPD brackish water RO element\u003c\/strong\u003e, or \u003cstrong\u003e99.7% rejection Nitto RO membrane\u003c\/strong\u003e lead straight to this powerhouse of reliability and value. Contact us for compatibility verification, system integration advice, or bulk pricing on this industry-leading element.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003csection\u003e\u003c\/section\u003e\n\u003csection\u003e\u003c\/section\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938376700144,"sku":null,"price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_a5de0810-5fda-4dce-b746-62060b2152db.png?v=1777062293"},{"product_id":"bw30hr-440i","title":"Filmtec BW30HR 440i 8\" Membrane","description":"\u003cp\u003eThis Filmtec BW30HR 440i 8\" Membrane is specifically designed for reverse osmosis and offers a high performance rate of 12,650 GPD with an impressive 99.7% stabilized salt rejection. Trust this membrane to deliver clean, purified water for your needs.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/RO-FilmTec-BW30HR-440i-PDS-45-D04848-en.pdf?v=1743181460\" target=\"_blank\" title=\"Download BW30HR 440i Datasheet\" rel=\"noopener\"\u003eDownload BW30HR 440i 8\" Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938377322736,"sku":null,"price":630.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_817607f9-cce3-49c8-9995-74d214b87819.png?v=1777062297"},{"product_id":"dupont-filmtec-bw30-pro-4040","title":"DuPont FilmTec BW30 PRO-4040","description":"\u003cp\u003eThe DuPont FilmTec BW30 PRO 4040 membrane is engineered for light industrial use in brackish water treatment, handling higher silt densities with ease. Its fiberglass outer wrap ensures durability under elevated pressures, supporting up to 2400 gallons per day and 600 SIPG. Designed to fit standard 4\" housings, this membrane delivers consistent, high-quality water production, making it a trusted choice for demanding applications.\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003eQuality membranes, affordable prices\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938377453808,"sku":null,"price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_16005168-6e02-4597-bf44-170404f1864b.png?v=1777062299"},{"product_id":"dupont-filmtec-bw30-365","title":"FilmTec™ BW30 PRO-365 8\" Brackish Water Reverse Osmosis Membrane Element","description":"\u003cp dir=\"auto\"\u003eElevate your water treatment system with the \u003cstrong\u003eDuPont FilmTec™ BW30 PRO-365\u003c\/strong\u003e, the industry-standard high-rejection brackish water RO membrane engineered for consistent, reliable performance in demanding applications. Building on decades of proven BW30 heritage, this advanced element delivers superior permeate flow and salt rejection compared to previous generations—making it the smart upgrade or replacement choice for industrial, commercial, and municipal systems.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Area\u003c\/strong\u003e: 365 ft² (34 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow Rate\u003c\/strong\u003e: 10,000 gpd (38 m³\/d)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStabilized Salt Rejection\u003c\/strong\u003e: 99.55% (minimum 99.35%)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Spacer\u003c\/strong\u003e: 34 mil – for enhanced fouling protection\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 40\" length x 8\" diameter (standard 8x40 configuration)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Operating Pressure\u003c\/strong\u003e: 600 psi\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Operating Temperature\u003c\/strong\u003e: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH Range\u003c\/strong\u003e: 2–11 (cleaning up to pH 1–13 for maximum flexibility)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorine Tolerance\u003c\/strong\u003e: \u0026lt;0.1 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eTested under standard conditions: 2,000 ppm NaCl, 225 psi (15.5 bar), 77°F (25°C), pH 8, 15% recovery.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eWhy Choose the BW30 PRO-365?\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Performance\u003c\/strong\u003e: Achieves higher flow and rejection rates than legacy BW30 elements, providing more high-quality permeate with lower energy use and reduced system footprint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExceptional Durability\u003c\/strong\u003e: Built for long-term stability and sustainable operation, minimizing downtime and replacement frequency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFouling Resistance\u003c\/strong\u003e: The thick 34 mil feed spacer offers outstanding protection against fouling and scaling, ideal for challenging brackish water sources with higher silt density or organic loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProven Reliability\u003c\/strong\u003e: Backed by DuPont's automated manufacturing for precision, consistency, and decades of real-world success in brackish water RO systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Applications\u003c\/strong\u003e: Perfect for product replacement in existing setups, industrial process water, municipal drinking water, food \u0026amp; beverage, electronics manufacturing, power generation, and more.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eWhether you're optimizing a new installation or refreshing an aging RO array, the BW30 PRO-365 combines high productivity with robust fouling resistance to deliver clean, consistent water quality day after day.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eOptimize your system today\u003c\/strong\u003e with genuine DuPont FilmTec™ quality. Each element includes the standard coupler (part #313198). Contact us for bulk pricing, system design support, or compatibility questions for your specific feedwater conditions.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eKnappRO Chicago – Your trusted source for premium RO membranes and water filtration solutions.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThis description is SEO-friendly, highlights benefits alongside specs, and positions it well for your Shopify store. It emphasizes reliability and performance to appeal to both technical buyers and decision-makers. Let me know if you'd like variations (shorter version, bullet-heavy, or tailored for specific uses like car washes or maple sap concentration).\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938377486576,"sku":null,"price":550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_0f650956-d90c-45d7-9780-4007201ef4de.png?v=1777062301"},{"product_id":"espa2-max","title":"ESPA2 MAX Reverse Osmosis Membrane – Low Energy, High Productivity Brackish Water Element","description":"\u003cp dir=\"auto\"\u003eMaximize productivity and minimize energy use with the \u003cstrong\u003eHydranautics ESPA2 MAX\u003c\/strong\u003e, a premium 8\" x 40\" low-energy reverse osmosis membrane from the ESPA (Energy Saving Polyamide) series. Featuring an expanded active membrane area, this MAX variant delivers higher permeate flow while maintaining excellent salt rejection at remarkably low operating pressures — ideal for cost-effective brackish water treatment.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Specifications \u0026amp; Performance\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow\u003c\/strong\u003e: 12,000 gallons per day (45.4 m³\/day)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt Rejection\u003c\/strong\u003e: 99.6% (99.5% minimum)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Membrane Area\u003c\/strong\u003e: 440 ft² (40.9 m²) — increased packing density for greater output\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Conditions\u003c\/strong\u003e: 1,500 ppm NaCl, \u003cstrong\u003e150 psig\u003c\/strong\u003e (1.03 MPa) applied pressure, 77°F (25°C), 15% recovery, pH 6.5–7.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Spiral Wound \u003cstrong\u003eMembrane Polymer\u003c\/strong\u003e: Composite Polyamide \u003cstrong\u003eDimensions\u003c\/strong\u003e: 8\" diameter x 40\" length (includes brine seal, interconnector, and O-rings)\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eStandout Features\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Efficient Operation\u003c\/strong\u003e: Performs optimally at low feed pressures, significantly reducing pumping costs and overall system energy consumption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Productivity MAX Design\u003c\/strong\u003e: Larger active area allows higher flow rates in the same standard element size — reducing the number of pressure vessels and floor space needed, which lowers capital costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Rejection \u0026amp; Durability\u003c\/strong\u003e: Provides consistently low permeate TDS with robust performance across variable brackish feeds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Limits\u003c\/strong\u003e:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMax Applied Pressure: 600 psig (4.14 MPa)\u003c\/li\u003e\n\u003cli\u003eMax Operating Temperature: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003epH Range (Continuous \/ Cleaning): 2–10.6 (1–12)\u003c\/li\u003e\n\u003cli\u003eMax Feedwater Turbidity: 1.0 NTU\u003c\/li\u003e\n\u003cli\u003eMax Feedwater SDI (15 min): 5.0\u003c\/li\u003e\n\u003cli\u003eMax Feed Flow: 75 gpm (17.0 m³\/h)\u003c\/li\u003e\n\u003cli\u003eMax Pressure Drop per Element: 15 psi\u003c\/li\u003e\n\u003cli\u003eChlorine Tolerance: \u0026lt; 0.1 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMunicipal drinking water production and wastewater reclamation\u003c\/li\u003e\n\u003cli\u003eIndustrial process water and boiler feed systems\u003c\/li\u003e\n\u003cli\u003eCommercial RO installations focused on energy savings\u003c\/li\u003e\n\u003cli\u003eLarge-scale plants seeking high output with lower operating pressures\u003c\/li\u003e\n\u003cli\u003eAny brackish water system where cost efficiency and high productivity are priorities\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eTrusted Quality from Hydranautics\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eEach ESPA2 MAX element is carefully packaged in a sealed polyethylene bag with sodium meta-bisulfite preservative, ensuring it arrives in optimal condition for long-term, reliable service in demanding applications.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e: Competitive pricing through KnappRO Chicago (inquire for volume discounts or current stock).\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eESPA2 MAX\u003c\/strong\u003e combines low-energy performance with maximum productivity — delivering pure water more efficiently than standard elements. Perfect upgrade for systems looking to boost output while cutting energy bills.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eAdd to your cart today or contact us for expert advice on membrane selection, system design, or compatibility with your existing setup.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eKnappRO Chicago — Premium Hydranautics RO membranes at affordable prices with dedicated support.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938377683184,"sku":null,"price":580.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_bab6a03c-2e94-48b8-9fde-2597add600ae.png?v=1777062302"},{"product_id":"espa2-ld","title":"Hydranautics ESPA2-LD Reverse Osmosis Membrane","description":"\u003cp dir=\"auto\"\u003eOptimize energy efficiency and system performance with the \u003cstrong\u003eHydranautics ESPA2-LD\u003c\/strong\u003e, a high-performance 8\" x 40\" low-energy reverse osmosis membrane designed for brackish water treatment. Part of the renowned ESPA (Energy Saving Polyamide) series, this LD (Low Differential) variant excels in applications requiring lower operating pressures, reduced energy consumption, and superior fouling resistance.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Specifications \u0026amp; Performance\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow\u003c\/strong\u003e: 10,000 gallons per day (37.9 m³\/day)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt Rejection\u003c\/strong\u003e: 99.6% (99.5% minimum)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Membrane Area\u003c\/strong\u003e: 400 ft² (37.2 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Spacer\u003c\/strong\u003e: 34 mil (0.86 mm) — enhances low-fouling performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Conditions\u003c\/strong\u003e: 1,500 ppm NaCl, \u003cstrong\u003e150 psig\u003c\/strong\u003e (1.03 MPa) applied pressure, 77°F (25°C), 15% recovery, pH 6.5–7.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Low Fouling Spiral Wound \u003cstrong\u003eMembrane Polymer\u003c\/strong\u003e: Composite Polyamide \u003cstrong\u003eDimensions\u003c\/strong\u003e: 8\" diameter x 40\" length (includes brine seal, interconnector, and O-rings)\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eWhy Choose the ESPA2-LD?\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Savings\u003c\/strong\u003e: Operates effectively at significantly lower feed pressures (tested at just 150 psi), reducing pump energy costs and overall system expenses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Fouling LD Technology\u003c\/strong\u003e: Minimizes colloidal and biofouling with a wider feed spacer and optimized design — resulting in longer cleaning intervals, extended membrane life, and lower maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Rejection\u003c\/strong\u003e: Delivers consistently low permeate TDS for high-quality output in variable brackish water conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Operating Limits\u003c\/strong\u003e:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMax Applied Pressure: 600 psig (4.14 MPa)\u003c\/li\u003e\n\u003cli\u003eMax Operating Temperature: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003epH Range (Continuous \/ Cleaning): 2–10.6 (1–12)\u003c\/li\u003e\n\u003cli\u003eMax Feedwater Turbidity: 1.0 NTU\u003c\/li\u003e\n\u003cli\u003eMax Feedwater SDI (15 min): 5.0\u003c\/li\u003e\n\u003cli\u003eMax Feed Flow: 85 gpm (19.3 m³\/h)\u003c\/li\u003e\n\u003cli\u003eMax Pressure Drop per Element: 15 psi\u003c\/li\u003e\n\u003cli\u003eChlorine Tolerance: \u0026lt; 0.1 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMunicipal water treatment and wastewater reclamation\u003c\/li\u003e\n\u003cli\u003eCommercial and industrial brackish water desalination\u003c\/li\u003e\n\u003cli\u003eBoiler feedwater and process water purification\u003c\/li\u003e\n\u003cli\u003eSystems with energy constraints or lower-pressure requirements\u003c\/li\u003e\n\u003cli\u003eInstallations using conventional pretreatment where fouling resistance is critical\u003c\/li\u003e\n\u003cli\u003eLarge-scale plants seeking cost-effective, high-efficiency RO performance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003ePremium Packaging \u0026amp; Reliability\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eEvery ESPA2-LD element ships protected in a sealed polyethylene bag with sodium meta-bisulfite solution, ensuring it arrives ready for immediate, long-term reliable service.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e: Competitive pricing at KnappRO Chicago (contact for current pricing, volume discounts, or system integration advice).\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePerfect for energy-conscious operations\u003c\/strong\u003e looking to lower operating costs without sacrificing permeate quality or durability. The ESPA2-LD is a go-to choice for municipalities, industries, and commercial facilities worldwide.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eUpgrade your RO system with the \u003cstrong\u003eESPA2-LD\u003c\/strong\u003e today — lower energy, lower fouling, higher efficiency. Reach out for help with membrane selection, array configuration, or compatibility questions.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eKnappRO Chicago — Quality Hydranautics membranes, affordable prices, and expert water treatment support.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938377715952,"sku":null,"price":550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_28cdcca1-5623-49c4-bbc3-4569651755d0.png?v=1777062303"},{"product_id":"espa2-ld-4040","title":"ESPA2 LD 4040 Energy Saving Polyamide Membrane","description":"\u003cp\u003eESPA2 LD 4040 is a high-performance polyamide membrane that offers energy savings and low fouling properties. With a capacity of 2,000 gallons per day and an impressive salt rejection rate of 99.6%, this spiral wound membrane is perfect for industrial and commercial applications. Trust in its superior quality and performance for all your filtration needs.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/ESPA2-LD-4040.pdf?v=1743181216\" target=\"_blank\" title=\"Download ESPA2 LD 4040 Datasheet\" rel=\"noopener\"\u003eDownload ESPA2 LD 4040 Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938378010864,"sku":null,"price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_a1677fee-59d7-452a-9be7-6ca2bce9b700.png?v=1777062307"},{"product_id":"xle-pro-4040","title":"Filmtec XLE PRO-4040 4\" Membrane","description":"\u003cp\u003eExperience superior water filtration with Filmtec XLE PRO 4040 4\" Membrane. This large commercial element offers 2,750 gallons per day and 99% stabilized salt rejection for optimal performance. Its low energy design ensures efficiency, saving you money in the long run. Trust in the expertise of Filmtec for high-quality water filtration.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/XLE_PRO_4040.pdf?v=1743181043\" target=\"_blank\" title=\"Download XLE PRO 4040 Datasheet\" rel=\"noopener\"\u003eDownload XLE PRO 4040 Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938378207472,"sku":null,"price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_4a6572c8-0fb3-47d3-972c-c52bc893663c.png?v=1777062308"},{"product_id":"espa1-ld-4040","title":"ESPA1 LD 4040 Energy Saving Polyamide Membrane","description":"\u003cp\u003eMaximize your energy efficiency with the ESPA1 LD 4040 Energy Saving Polyamide Membrane. This high-quality membrane, manufactured by Hydranautics, offers an impressive 99.4% salt rejection rate and low fouling potential. With a capacity of 2,450 gallons per day, it's the perfect solution for optimizing your water filtration system.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/ESPA1-LD-4040.pdf?v=1743180886\" target=\"_blank\" title=\"Download ESPA1 LD 4040 Datasheet\" rel=\"noopener\"\u003eDownload ESPA1 LD 4040 Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938378535152,"sku":null,"price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_c0046342-39a0-444a-a886-47aa84ae2b9d.png?v=1777062310"},{"product_id":"cpa5-ld","title":"Hydranautics CPA5 LD 8\" Brackish Water Reverse Osmosis Membrane | KnappRO","description":"\u003ch2\u003eHydranautics CPA5-LD 8\" Reverse Osmosis Membrane: High-Performance Brackish Water Filtration\u003c\/h2\u003e\n\u003cp\u003eThe Hydranautics CPA5-LD 8\" membrane is engineered for demanding brackish water treatment applications, offering exceptional efficiency in industrial, municipal, and commercial systems. With a permeate flow of 11,000 GPD (gallons per day) and a 99.7% nominal salt rejection rate, this low-fouling spiral wound element ensures maximum productivity while minimizing maintenance.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eTechnical Specifications\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePermeate Flow: 11,000 GPD (41.6 m³\/day)\u003c\/li\u003e\n\u003cli\u003eNominal Salt Rejection: 99.7% (minimum 99.6%)\u003c\/li\u003e\n\u003cli\u003eMembrane Type: Low-fouling spiral wound, composite polyamide\u003c\/li\u003e\n\u003cli\u003eActive Membrane Area: 400 ft² (37.1 m²)\u003c\/li\u003e\n\u003cli\u003eElement Size: 8\" diameter × 40\" length (8040)\u003c\/li\u003e\n\u003cli\u003eMaximum Operating Pressure: 600 psig (4.16 MPa)\u003c\/li\u003e\n\u003cli\u003eMaximum Operating Temperature: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003eChlorine Tolerance: \u0026lt; 0.1 ppm\u003c\/li\u003e\n\u003cli\u003epH Range (Continuous Operation): 2 – 11\u003c\/li\u003e\n\u003cli\u003eFeed Water SDI: ≤ 5.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey Features and Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Salt Rejection\u003c\/strong\u003e: Removes up to 99.7% of dissolved salts, ideal for moderate salinity water (2,000–8,000 ppm TDS).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Fouling Design\u003c\/strong\u003e: Spiral wound construction reduces fouling, extending membrane life and lowering operational costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnergy Efficiency\u003c\/strong\u003e: Operates at lower pressures, saving on energy for large-scale setups like boiler feed or cooling towers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Build\u003c\/strong\u003e: Proven in harsh environments, with a long service life for reliable performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cp\u003ePerfect for:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndustrial water purification in manufacturing and power plants.\u003c\/li\u003e\n\u003cli\u003eMunicipal systems for potable water production.\u003c\/li\u003e\n\u003cli\u003eAgricultural irrigation and food\/beverage processing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAt KnappRO Chicago, we stock genuine Hydranautics membranes with fast shipping from our local warehouse. Download the \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/CPA5-LD.pdf?v=1743180729\"\u003eCPA5-LD Datasheet\u003c\/a\u003e for full specifications. Need help selecting the right RO membrane? Contact our experts for personalized guidance.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose KnappRO?\u003c\/h3\u003e\n\u003cp\u003e- Trusted supplier of Hydranautics, LG Chem, and DuPont FilmTec products. - Competitive pricing at $587.00 USD. - Secure checkout and customer support. Upgrade your water treatment system today—add to cart for crystal-clear results!\u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938378567920,"sku":null,"price":550.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/Hydranautics_CPA5_LD_8-inch_high-performance_brackish_water_RO_membrane.png?v=1777062311"},{"product_id":"cpa7-max","title":"CPA7 MAX Reverse Osmosis Membrane – Ultra-High Rejection Brackish Water Element","description":"\u003cp dir=\"auto\"\u003eTake your water treatment system to the next level with the \u003cstrong\u003eHydranautics CPA7 MAX\u003c\/strong\u003e, the latest in the acclaimed CPA series of brackish water RO membranes. Offering the \u003cstrong\u003ehighest salt rejection\u003c\/strong\u003e available in the industry combined with high productivity, this 8\" x 40\" composite polyamide membrane is engineered for applications demanding the purest water quality — even under challenging feedwater conditions.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Specifications \u0026amp; Performance\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow\u003c\/strong\u003e: 12,600 gallons per day (47.7 m³\/day)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt Rejection\u003c\/strong\u003e: 99.8% (99.7% minimum) — setting a new standard for ultra-high purity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Membrane Area\u003c\/strong\u003e: 440 ft² (40.9 m²) — maximized surface area for greater output and fewer vessels required\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Conditions\u003c\/strong\u003e: 1,500 ppm NaCl, 225 psig (15.5 bar) applied pressure, 77°F (25°C), 15% recovery, pH 6.5–7.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Spiral Wound \u003cstrong\u003eMembrane Polymer\u003c\/strong\u003e: Advanced Composite Polyamide \u003cstrong\u003eDimensions\u003c\/strong\u003e: 8\" diameter x 40\" length (includes brine seal, interconnector, and O-rings)\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eStandout Features\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry-Leading Rejection\u003c\/strong\u003e: Delivers unmatched purity for critical applications where even trace dissolved solids are unacceptable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Flow + Efficiency\u003c\/strong\u003e: The MAX design packs more active area into the standard element size, reducing capital costs by requiring fewer pressure vessels and less floor space while maintaining excellent productivity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFouling Resistance \u0026amp; Durability\u003c\/strong\u003e: Built on Hydranautics’ proven technology for minimized biofouling and colloidal fouling, with strong cleanability for longer service life and lower maintenance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Operating Limits\u003c\/strong\u003e:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMax Applied Pressure: 600 psig (4.14 MPa)\u003c\/li\u003e\n\u003cli\u003eMax Operating Temperature: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003epH Range (Continuous \/ Cleaning): 2–11 (1–13)\u003c\/li\u003e\n\u003cli\u003eMax Feedwater Turbidity: 1.0 NTU\u003c\/li\u003e\n\u003cli\u003eMax Feedwater SDI (15 min): 5.0\u003c\/li\u003e\n\u003cli\u003eMax Feed Flow: 75 gpm (17.0 m³\/h)\u003c\/li\u003e\n\u003cli\u003eMax Pressure Drop per Element: 15 psi\u003c\/li\u003e\n\u003cli\u003eChlorine Tolerance: \u0026lt; 0.1 ppm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMunicipal drinking water production from brackish wells\u003c\/li\u003e\n\u003cli\u003eBoiler makeup and ultrapure water systems\u003c\/li\u003e\n\u003cli\u003eSemiconductor and electronics manufacturing\u003c\/li\u003e\n\u003cli\u003eTDS reduction prior to ion exchange or polishing\u003c\/li\u003e\n\u003cli\u003eIndustrial process water where ultra-high purity is essential\u003c\/li\u003e\n\u003cli\u003eAny system needing the best combination of high rejection and high flow in brackish conditions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 dir=\"auto\"\u003ePremium Quality You Can Rely On\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003eEach CPA7 MAX element is supplied in a sealed polyethylene bag with sodium meta-bisulfite preservative, ready for reliable long-term performance in continuous-duty commercial, industrial, and municipal RO systems.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e: Competitive pricing through KnappRO Chicago (contact for current quote or volume discounts)\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eWhy KnappRO?\u003c\/strong\u003e Quality Hydranautics membranes at accessible prices, with fast shipping and expert support tailored to your system needs.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eReady to upgrade to the highest rejection membrane available? Add the \u003cstrong\u003eCPA7 MAX\u003c\/strong\u003e to your cart today or reach out for system compatibility advice, array design recommendations, or bulk ordering.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eKnappRO Chicago — Quality membranes, affordable prices, exceptional water treatment results.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938378633456,"sku":null,"price":615.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_c299b13a-0f3b-4dcd-a5c0-767ef0d9f19d.png?v=1777062311"},{"product_id":"bw30hrle-440i","title":"DuPont FilmTec™ BW30HRLE-440i High Rejection Low Energy Brackish Water RO Membrane – 8\" x 40\"","description":"\u003cp dir=\"auto\"\u003e\u003cstrong\u003eDuPont FilmTec™ BW30HRLE-440i High Rejection Low Energy Brackish Water Reverse Osmosis Membrane – 8\" x 40\" with iLEC™ Interlocking End Caps | 12,650 GPD\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe \u003cstrong\u003eFilmTec™ BW30HRLE-440i\u003c\/strong\u003e is DuPont’s advanced \u003cstrong\u003ehigh rejection low energy\u003c\/strong\u003e brackish water RO membrane, designed for operators who demand excellent permeate purity \u003cstrong\u003eat significantly lower operating pressures\u003c\/strong\u003e — up to \u003cstrong\u003e33% lower\u003c\/strong\u003e than standard brackish elements. This makes it ideal for energy-conscious municipal, industrial, and ultrapure water systems while delivering superior rejection of salts, silica, boron, nitrates, IPA, and ammonium.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eFeaturing a large \u003cstrong\u003e440 ft² active area\u003c\/strong\u003e, a \u003cstrong\u003e28 mil feed spacer\u003c\/strong\u003e, and DuPont’s innovative \u003cstrong\u003eiLEC™ interlocking end caps\u003c\/strong\u003e, this element combines high productivity with reduced energy costs, minimized O-ring leaks, lower risk of telescoping, and easier installation\/maintenance. The robust polyamide thin-film composite construction offers the widest cleaning pH range (1–13) for outstanding cleanability, durability, and long membrane life — even in challenging controlled-pretreated waters.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Rejection at Low Energy\u003c\/strong\u003e — Achieves \u003cstrong\u003e99.3% stabilized salt rejection\u003c\/strong\u003e (minimum 99.1%) while producing \u003cstrong\u003e12,650 GPD (48 m³\/d)\u003c\/strong\u003e at just \u003cstrong\u003e150 psi\u003c\/strong\u003e test pressure — delivering strong performance with lower pumping and electricity costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Contaminant Rejection\u003c\/strong\u003e — Excellent removal of silica, boron, nitrate, IPA, and ammonium for higher-purity permeate in demanding applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eiLEC™ Interlocking End Caps\u003c\/strong\u003e — Reduces O-ring leaks, improves water quality, lowers operating costs, and simplifies element handling in multi-element vessels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Fouling Resistance \u0026amp; Cleanability\u003c\/strong\u003e — 28 mil feed spacer and widest pH cleaning range (1–13 short-term) provide effective cleaning and extended element life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Active Area\u003c\/strong\u003e — 440 ft² delivers high flow, allowing system designers to use fewer elements and reduce capital costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFiberglass Outer Wrap\u003c\/strong\u003e — Provides structural strength and durability for reliable operation up to 600 psi.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eIdeal Applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eIndustrial water demineralization and utility water\u003c\/li\u003e\n\u003cli\u003eSecond-pass RO for ultrapure water production\u003c\/li\u003e\n\u003cli\u003eMunicipal drinking water and water reuse systems\u003c\/li\u003e\n\u003cli\u003eFood \u0026amp; beverage processing\u003c\/li\u003e\n\u003cli\u003eSeawater desalination post-treatment or polishing\u003c\/li\u003e\n\u003cli\u003eLarge commercial RO systems requiring high purity with energy efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Area\u003c\/strong\u003e: 440 ft² (41 m²)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed Spacer Thickness\u003c\/strong\u003e: 28 mil\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow Rate\u003c\/strong\u003e: 12,650 GPD (48 m³\/d) nominal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStabilized Salt Rejection\u003c\/strong\u003e: 99.3%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Salt Rejection\u003c\/strong\u003e: 99.1%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMembrane Type\u003c\/strong\u003e: Polyamide Thin-Film Composite\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDimensions\u003c\/strong\u003e: 40\" net length (when interlocked) × 8\" Diameter; individual element 40.5\" with iLEC™\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Pressure\u003c\/strong\u003e: 600 psi (41 bar)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Operating Temperature\u003c\/strong\u003e: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH Range (Continuous)\u003c\/strong\u003e: 2–11 | Short-Term Cleaning: 1–13\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Pressure Drop\u003c\/strong\u003e: 15 psi per element \/ 50 psi per vessel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Feed Flow\u003c\/strong\u003e: 75 GPM (17 m³\/h)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Chlorine Tolerance\u003c\/strong\u003e: \u0026lt;0.1 ppm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Feed SDI\u003c\/strong\u003e: 5\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eTest conditions: 2,000 ppm NaCl, 150 psi (10.3 bar), 77°F (25°C), pH 8, 15% recovery.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBacked by DuPont’s technical expertise and reputation for innovation, the \u003cstrong\u003eBW30HRLE-440i\u003c\/strong\u003e helps you achieve consistent high-purity water with lower energy consumption and reduced total cost of ownership.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePro Tip:\u003c\/strong\u003e For optimal performance, use proper pretreatment, follow DuPont FilmTec™ design guidelines, and leverage the support of DuPont technical representatives.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eUpgrade your RO system with the FilmTec™ BW30HRLE-440i today — enjoy high rejection, low-energy operation, and reliable long-term performance.\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46938378764528,"sku":null,"price":610.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_eeba78dd-25c8-4815-9069-45917b427a4b.png?v=1777062313"},{"product_id":"cpa5-max","title":"CPA5 MAX Reverse Osmosis Membrane – High-Performance Brackish Water Filter","description":"\u003cp dir=\"auto\"\u003eElevate your water purification system with the \u003cstrong\u003eHydranautics CPA5 MAX\u003c\/strong\u003e, a premium 8\" x 40\" composite polyamide RO membrane engineered for maximum salt rejection and exceptional throughput in demanding applications. Whether you're desalting well water for municipal drinking supplies, producing high-purity boiler makeup water, polishing ultrapure water for industrial processes, or reducing TDS before ion exchange, the CPA5 MAX delivers industry-leading performance you can trust.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eKey Specifications \u0026amp; Performance\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003ePermeate Flow\u003c\/strong\u003e: 12,000 gallons per day (45.4 m³\/day)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt Rejection\u003c\/strong\u003e: 99.7% (99.6% minimum) — among the highest in its class\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive Membrane Area\u003c\/strong\u003e: 440 ft² (40.9 m²) — increased surface area for higher productivity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest Conditions\u003c\/strong\u003e: 1,500 ppm NaCl, 225 psig (15.5 bar) applied pressure, 77°F (25°C), 15% recovery, pH 6.5–7.0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eConfiguration\u003c\/strong\u003e: Spiral wound \u003cstrong\u003eMembrane Polymer\u003c\/strong\u003e: Advanced composite polyamide \u003cstrong\u003eDimensions\u003c\/strong\u003e: 8\" diameter x 40\" length (with brine seal, interconnector, and O-rings included)\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eWhy Choose the CPA5 MAX?\u003c\/h3\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior Fouling Resistance\u003c\/strong\u003e: Optimized design minimizes biofouling and colloidal fouling, extending membrane life and reducing cleaning frequency.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced Cleanability\u003c\/strong\u003e: Stays cleaner longer and responds better to maintenance — keeping your system running efficiently with lower operating costs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Rejection Across Variable Waters\u003c\/strong\u003e: Excels with brackish, low-salinity feeds (typically 2,000–8,000 ppm TDS range) while maintaining consistent high performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRobust Operating Limits\u003c\/strong\u003e:\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003eMax pressure: 600 psig (41.4 bar)\u003c\/li\u003e\n\u003cli\u003eMax temperature: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003epH range (continuous): 2–11 (cleaning: 1–13)\u003c\/li\u003e\n\u003cli\u003eMax feed flow: 75 gpm\u003c\/li\u003e\n\u003cli\u003eLow chlorine tolerance (\u0026lt;0.1 ppm) — standard for thin-film composite membranes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eThis membrane is ideal for commercial, industrial, and municipal RO systems where reliability, high output, and ultra-low permeate TDS are non-negotiable.\u003c\/p\u003e\n\u003ch3 dir=\"auto\"\u003eBuilt for Real-World Reliability\u003c\/h3\u003e\n\u003cp dir=\"auto\"\u003ePackaged with a protective sodium meta-bisulfite solution and ready for immediate installation, every CPA5 MAX element from KnappRO undergoes strict quality assurance. Trusted by water treatment professionals worldwide, Hydranautics CPA series membranes set the benchmark for consistent, high-rejection performance.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003ePrice\u003c\/strong\u003e: $590.00 USD (competitive pricing with fast shipping options available)\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eUpgrade your RO system today with the \u003cstrong\u003eCPA5 MAX\u003c\/strong\u003e — powerful rejection, maximum productivity, and the durability your operation demands. Perfect for standalone use or as part of multi-stage arrays.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eQuestions about compatibility with your existing pressure vessels, feedwater chemistry, or system design? Reach out — we're here to help optimize your setup for peak performance.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cem\u003eShop confidently at KnappRO Chicago — Quality membranes, affordable prices, and expert support for your water treatment needs.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e \u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938378797296,"sku":null,"price":590.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/CPA5Max.png?v=1779855961"},{"product_id":"cpa7-ld","title":"Hydranautics CPA7 LD 8\" Membrane","description":"\u003cp\u003eExpertly designed for maximum performance, the CPA7 LD by Hydranautics boasts a low fouling spiral wound construction, ensuring 99.8% salt rejection and delivering an impressive 11,500 gallons per day. Achieve the highest quality water with this 8\" membrane.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/CPA7-LD_1.pdf?v=1743180642\" target=\"_blank\" title=\"Download CPA7 LD Datasheet\" rel=\"noopener\"\u003eDownload CPA7 LD Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46938378830064,"sku":null,"price":590.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_a64c5520-44c8-4f1e-b77d-4be47f9976a8.png?v=1777062313"},{"product_id":"tw30-2514","title":"DuPont FilmTec TW30-2514 – 2.5\" Reverse Osmosis Membrane","description":"\u003cp data-start=\"552\" data-end=\"999\"\u003eThe \u003cstrong data-start=\"556\" data-end=\"584\"\u003eDuPont FilmTec TW30-2514\u003c\/strong\u003e is a high-quality \u003cstrong data-start=\"603\" data-end=\"632\"\u003e2.5\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-start=\"647\" data-end=\"684\"\u003ereverse osmosis (RO) applications\u003c\/strong\u003e that require \u003cstrong data-start=\"698\" data-end=\"752\"\u003esuperior contaminant removal and high water purity\u003c\/strong\u003e. Engineered with \u003cstrong data-start=\"770\" data-end=\"810\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane ensures \u003cstrong data-start=\"834\" data-end=\"904\"\u003eoptimal salt rejection, high efficiency, and long-term reliability\u003c\/strong\u003e, making it ideal for \u003cstrong data-start=\"926\" data-end=\"996\"\u003eindustrial, commercial, and municipal water treatment applications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"1001\" data-end=\"1024\"\u003e\u003cstrong data-start=\"1005\" data-end=\"1022\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1025\" data-end=\"1828\"\u003e✔️ \u003cstrong data-start=\"1028\" data-end=\"1045\"\u003e2.5\" Diameter\u003c\/strong\u003e – Compact size for mid-capacity reverse osmosis systems\u003cbr data-start=\"1101\" data-end=\"1104\"\u003e✔️ \u003cstrong data-start=\"1107\" data-end=\"1136\"\u003eDuPont FilmTec Technology\u003c\/strong\u003e – Industry-leading membrane for high-efficiency water purification\u003cbr data-start=\"1203\" data-end=\"1206\"\u003e✔️ \u003cstrong data-start=\"1209\" data-end=\"1232\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes dissolved solids, organics, and contaminants\u003cbr data-start=\"1299\" data-end=\"1302\"\u003e✔️ \u003cstrong data-start=\"1305\" data-end=\"1344\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and ensures consistent filtration performance\u003cbr data-start=\"1412\" data-end=\"1415\"\u003e✔️ \u003cstrong data-start=\"1418\" data-end=\"1448\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maximizes water output while maintaining energy efficiency\u003cbr data-start=\"1509\" data-end=\"1512\"\u003e✔️ \u003cstrong data-start=\"1515\" data-end=\"1555\"\u003eIndustrial \u0026amp; Commercial Applications\u003c\/strong\u003e – Ideal for food and beverage processing, pharmaceuticals, and high-purity water systems\u003cbr data-start=\"1644\" data-end=\"1647\"\u003e✔️ \u003cstrong data-start=\"1650\" data-end=\"1677\"\u003eReliable \u0026amp; Long-Lasting\u003c\/strong\u003e – Built for extended membrane life with minimal maintenance\u003cbr data-start=\"1737\" data-end=\"1740\"\u003e✔️ \u003cstrong data-start=\"1743\" data-end=\"1777\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing RO systems\u003c\/p\u003e\n\u003cp data-start=\"1830\" data-end=\"2101\"\u003eThe \u003cstrong data-start=\"1834\" data-end=\"1888\"\u003eDuPont FilmTec TW30-2514 2.5\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-start=\"1896\" data-end=\"1953\"\u003eperfect solution for high-efficiency water filtration\u003c\/strong\u003e, offering \u003cstrong data-start=\"1964\" data-end=\"2056\"\u003eexceptional contaminant removal, long-term reliability, and optimized system performance\u003c\/strong\u003e in industrial and commercial applications.\u003c\/p\u003e\n\u003cp data-start=\"2103\" data-end=\"2150\"\u003e \u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942813192432,"sku":null,"price":120.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_8fef2d22-40e9-4ba1-ba5d-8f0acd41c153.png?v=1777062253"},{"product_id":"dow®-filmtec™-tw30-1812-50","title":"Dow FilmTec, TW30-1812-50HR - 50 gpd TFC High Rejection Membrane for Undersink Reverse Osmosis (RO) System (Replaces Model TW30-1812-50)","description":"\u003cp data-end=\"1148\" data-start=\"575\"\u003eThe \u003cstrong data-end=\"609\" data-start=\"579\"\u003eDOW® FilmTec™ TW30-1812-50\u003c\/strong\u003e is a high-efficiency \u003cstrong data-end=\"660\" data-start=\"631\"\u003e1.8\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-end=\"740\" data-start=\"675\"\u003eresidential and light commercial reverse osmosis (RO) systems\u003c\/strong\u003e requiring \u003cstrong data-end=\"816\" data-start=\"751\"\u003ehigh-purity water production and superior contaminant removal\u003c\/strong\u003e. Built with \u003cstrong data-end=\"869\" data-start=\"829\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane ensures \u003cstrong data-end=\"979\" data-start=\"893\"\u003eoptimal filtration performance, high rejection rates, and long-lasting reliability\u003c\/strong\u003e. Producing up to \u003cstrong data-end=\"1025\" data-start=\"997\"\u003e50 gallons per day (GPD)\u003c\/strong\u003e, it is ideal for \u003cstrong data-end=\"1145\" data-start=\"1043\"\u003ehome drinking water systems, small-scale food \u0026amp; beverage processing, and office water purification\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-end=\"1173\" data-start=\"1150\"\u003e\u003cstrong data-end=\"1171\" data-start=\"1154\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2107\" data-start=\"1174\"\u003e✔️ \u003cstrong data-end=\"1194\" data-start=\"1177\"\u003e1.8\" Diameter\u003c\/strong\u003e – Compact size for standard residential and light commercial RO systems\u003cbr data-end=\"1269\" data-start=\"1266\"\u003e✔️ \u003cstrong data-end=\"1300\" data-start=\"1272\"\u003eDOW® FilmTec™ Technology\u003c\/strong\u003e – Industry-leading membrane for high-efficiency water purification\u003cbr data-end=\"1370\" data-start=\"1367\"\u003e✔️ \u003cstrong data-end=\"1408\" data-start=\"1373\"\u003e50 Gallons Per Day (GPD) Output\u003c\/strong\u003e – Provides a reliable supply of high-purity water\u003cbr data-end=\"1461\" data-start=\"1458\"\u003e✔️ \u003cstrong data-end=\"1487\" data-start=\"1464\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes up to 99% of dissolved solids, bacteria, and contaminants\u003cbr data-end=\"1570\" data-start=\"1567\"\u003e✔️ \u003cstrong data-end=\"1612\" data-start=\"1573\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and ensures consistent filtration performance\u003cbr data-end=\"1683\" data-start=\"1680\"\u003e✔️ \u003cstrong data-end=\"1716\" data-start=\"1686\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maximizes water production while reducing wastewater output\u003cbr data-end=\"1781\" data-start=\"1778\"\u003e✔️ \u003cstrong data-end=\"1831\" data-start=\"1784\"\u003eResidential \u0026amp; Light Commercial Applications\u003c\/strong\u003e – Ideal for under-sink RO systems, small businesses, and food service applications\u003cbr data-end=\"1917\" data-start=\"1914\"\u003e✔️ \u003cstrong data-end=\"1950\" data-start=\"1920\"\u003eEnergy-Efficient Operation\u003c\/strong\u003e – Designed for high performance with low energy consumption\u003cbr data-end=\"2013\" data-start=\"2010\"\u003e✔️ \u003cstrong data-end=\"2050\" data-start=\"2016\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into standard 1.8\" RO housings\u003c\/p\u003e\n\u003cp data-end=\"2388\" data-start=\"2109\"\u003eThe \u003cstrong data-end=\"2169\" data-start=\"2113\"\u003eDOW® FilmTec™ TW30-1812-50 1.8\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-end=\"2238\" data-start=\"2177\"\u003eperfect choice for high-quality drinking water filtration\u003c\/strong\u003e, offering \u003cstrong data-end=\"2329\" data-start=\"2249\"\u003eexceptional contaminant removal, high water output, and long-term durability\u003c\/strong\u003e for residential and small-scale commercial applications.\u003c\/p\u003e\n\u003cp data-end=\"2437\" data-start=\"2390\"\u003e \u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942813225200,"sku":"TW30-1812-50-FilmTec","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_f2ed89f6-89b9-4cc0-aa64-5e91c7c39c1c.png?v=1777062258"},{"product_id":"tw30-pro-4040","title":"DuPont FilmTec TW30 PRO-4040 – 4\" Reverse Osmosis Membrane","description":"\u003cp data-end=\"1041\" data-start=\"560\"\u003eThe \u003cstrong data-end=\"596\" data-start=\"564\"\u003eDuPont FilmTec TW30 PRO-4040\u003c\/strong\u003e is a premium \u003cstrong data-end=\"637\" data-start=\"610\"\u003e4\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-end=\"689\" data-start=\"652\"\u003ereverse osmosis (RO) applications\u003c\/strong\u003e requiring \u003cstrong data-end=\"771\" data-start=\"700\"\u003ehigh water purity, optimized flow rates, and extended membrane life\u003c\/strong\u003e. Engineered with \u003cstrong data-end=\"829\" data-start=\"789\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane ensures \u003cstrong data-end=\"946\" data-start=\"853\"\u003eexceptional salt rejection, superior contaminant removal, and high operational efficiency\u003c\/strong\u003e, making it ideal for \u003cstrong data-end=\"1038\" data-start=\"968\"\u003eindustrial, commercial, and municipal water treatment applications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-end=\"1066\" data-start=\"1043\"\u003e\u003cstrong data-end=\"1064\" data-start=\"1047\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1973\" data-start=\"1067\"\u003e✔️ \u003cstrong data-end=\"1085\" data-start=\"1070\"\u003e4\" Diameter\u003c\/strong\u003e – Standard size for mid-capacity reverse osmosis systems\u003cbr data-end=\"1145\" data-start=\"1142\"\u003e✔️ \u003cstrong data-end=\"1177\" data-start=\"1148\"\u003eDuPont FilmTec Technology\u003c\/strong\u003e – Industry-leading membrane for high-efficiency water purification\u003cbr data-end=\"1247\" data-start=\"1244\"\u003e✔️ \u003cstrong data-end=\"1273\" data-start=\"1250\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes dissolved solids, organics, and contaminants\u003cbr data-end=\"1343\" data-start=\"1340\"\u003e✔️ \u003cstrong data-end=\"1385\" data-start=\"1346\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and ensures consistent filtration performance\u003cbr data-end=\"1456\" data-start=\"1453\"\u003e✔️ \u003cstrong data-end=\"1489\" data-start=\"1459\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maximizes water output while maintaining energy efficiency\u003cbr data-end=\"1553\" data-start=\"1550\"\u003e✔️ \u003cstrong data-end=\"1595\" data-start=\"1556\"\u003eExtended Membrane Life (PRO Series)\u003c\/strong\u003e – Designed for long-term operation and reduced maintenance\u003cbr data-end=\"1657\" data-start=\"1654\"\u003e✔️ \u003cstrong data-end=\"1700\" data-start=\"1660\"\u003eIndustrial \u0026amp; Commercial Applications\u003c\/strong\u003e – Ideal for food and beverage processing, pharmaceuticals, and high-purity water systems\u003cbr data-end=\"1792\" data-start=\"1789\"\u003e✔️ \u003cstrong data-end=\"1822\" data-start=\"1795\"\u003eReliable \u0026amp; Long-Lasting\u003c\/strong\u003e – Built for extended membrane life with minimal maintenance\u003cbr data-end=\"1885\" data-start=\"1882\"\u003e✔️ \u003cstrong data-end=\"1922\" data-start=\"1888\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing RO systems\u003c\/p\u003e\n\u003cp data-end=\"2234\" data-start=\"1975\"\u003eThe \u003cstrong data-end=\"2035\" data-start=\"1979\"\u003eDuPont FilmTec TW30 PRO-4040 4\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-end=\"2097\" data-start=\"2043\"\u003eideal solution for high-efficiency water treatment\u003c\/strong\u003e, offering \u003cstrong data-end=\"2193\" data-start=\"2108\"\u003eexceptional contaminant removal, long-term reliability, and optimized performance\u003c\/strong\u003e in industrial and commercial settings.\u003c\/p\u003e\n\u003cp data-end=\"2283\" data-start=\"2236\"\u003e \u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942813323504,"sku":null,"price":210.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_83680f3c-123a-4ee2-ae9a-5a163fe79811.png?v=1777062261"},{"product_id":"nf-400","title":"DuPont FilmTec NF 400 – 8\" Membrane","description":"\u003cp data-start=\"548\" data-end=\"991\"\u003eThe \u003cstrong data-start=\"552\" data-end=\"577\"\u003eDuPont FilmTec NF 400\u003c\/strong\u003e is a high-efficiency \u003cstrong data-start=\"599\" data-end=\"626\"\u003e8\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-start=\"641\" data-end=\"677\"\u003enanofiltration (NF) applications\u003c\/strong\u003e requiring \u003cstrong data-start=\"688\" data-end=\"766\"\u003ehigh flow rates, selective contaminant removal, and low energy consumption\u003c\/strong\u003e. Built with \u003cstrong data-start=\"779\" data-end=\"819\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane provides \u003cstrong data-start=\"844\" data-end=\"901\"\u003eeffective separation of organics, hardness, and salts\u003c\/strong\u003e, making it ideal for \u003cstrong data-start=\"923\" data-end=\"988\"\u003eindustrial, commercial, and municipal water treatment systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"993\" data-end=\"1016\"\u003e\u003cstrong data-start=\"997\" data-end=\"1014\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1017\" data-end=\"1926\"\u003e✔️ \u003cstrong data-start=\"1020\" data-end=\"1035\"\u003e8\" Diameter\u003c\/strong\u003e – Standard size for high-capacity nanofiltration systems\u003cbr data-start=\"1092\" data-end=\"1095\"\u003e✔️ \u003cstrong data-start=\"1098\" data-end=\"1127\"\u003eDuPont FilmTec Technology\u003c\/strong\u003e – Trusted for industry-leading nanofiltration performance\u003cbr data-start=\"1185\" data-end=\"1188\"\u003e✔️ \u003cstrong data-start=\"1191\" data-end=\"1235\"\u003eHigh-Flow Nanofiltration (NF) Technology\u003c\/strong\u003e – Removes contaminants while retaining beneficial minerals\u003cbr data-start=\"1294\" data-end=\"1297\"\u003e✔️ \u003cstrong data-start=\"1300\" data-end=\"1339\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Ensures superior durability and consistent filtration performance\u003cbr data-start=\"1407\" data-end=\"1410\"\u003e✔️ \u003cstrong data-start=\"1413\" data-end=\"1437\"\u003eLow-Energy Operation\u003c\/strong\u003e – Optimized for high water productivity with reduced energy costs\u003cbr data-start=\"1503\" data-end=\"1506\"\u003e✔️ \u003cstrong data-start=\"1509\" data-end=\"1539\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maximizes water output while maintaining high filtration efficiency\u003cbr data-start=\"1609\" data-end=\"1612\"\u003e✔️ \u003cstrong data-start=\"1615\" data-end=\"1666\"\u003eIndustrial, Commercial \u0026amp; Municipal Applications\u003c\/strong\u003e – Ideal for water softening, beverage processing, and wastewater treatment\u003cbr data-start=\"1741\" data-end=\"1744\"\u003e✔️ \u003cstrong data-start=\"1747\" data-end=\"1769\"\u003eDurable \u0026amp; Reliable\u003c\/strong\u003e – Designed for extended membrane life with minimal maintenance\u003cbr data-start=\"1832\" data-end=\"1835\"\u003e✔️ \u003cstrong data-start=\"1838\" data-end=\"1872\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing NF\/RO systems\u003c\/p\u003e\n\u003cp data-start=\"1928\" data-end=\"2171\"\u003eThe \u003cstrong data-start=\"1932\" data-end=\"1981\"\u003eDuPont FilmTec NF 400 8\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-start=\"1989\" data-end=\"2041\"\u003eideal choice for high-efficiency water treatment\u003c\/strong\u003e, providing \u003cstrong data-start=\"2053\" data-end=\"2130\"\u003efast water flow, selective salt rejection, and energy-efficient operation\u003c\/strong\u003e in industrial and commercial settings.\u003c\/p\u003e\n\u003cp data-start=\"2173\" data-end=\"2220\"\u003e \u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46942813421808,"sku":null,"price":1381.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/NF-400.jpg?v=1782842134"},{"product_id":"tt-1812-50","title":"DuPont FilmTec TT-1812-50 – 1.8\" Reverse Osmosis Membrane","description":"\u003cp dir=\"auto\"\u003eDiscover dependable, high-quality water purification with the \u003cstrong\u003eDuPont™ FilmTec™ TapTec™ TT-1812-50\u003c\/strong\u003e 50 GPD Reverse Osmosis Membrane Element.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003ePart of DuPont’s trusted TapTec™ residential RO series, this thin-film composite (TFC) membrane offers the perfect balance of performance, reliability, and value. It produces up to \u003cstrong\u003e50 gallons per day (7.9 liters per hour)\u003c\/strong\u003e of clean, great-tasting water while delivering \u003cstrong\u003e98% stabilized salt rejection\u003c\/strong\u003e (minimum 96%) under standard test conditions.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eDesigned specifically for tap water applications, the TT-1812-50 effectively removes dissolved solids, heavy metals, nitrates, and other common contaminants—making it an ideal upgrade or replacement for most standard under-sink reverse osmosis systems. Its optimized design ensures quick stabilization, consistent flow, and long-term performance, even in varying household conditions.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eBacked by DuPont’s advanced membrane technology and precision manufacturing, this element provides the reliability homeowners expect from the FilmTec™ brand—now at an outstanding value point.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eKey Benefits \u0026amp; Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003e50 GPD production rate\u003c\/strong\u003e — Sufficient for small to medium households or focused drinking\/cooking water needs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e98% stabilized salt rejection\u003c\/strong\u003e — Strong contaminant removal for safer, better-tasting water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExcellent value performance\u003c\/strong\u003e — Leverages proven DuPont thin-film composite technology\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast stabilization\u003c\/strong\u003e — Reaches high rejection quickly after installation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDry-shipped\u003c\/strong\u003e — Extended shelf life and cleaner, easier handling during replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal 1812 sizing\u003c\/strong\u003e — Fits standard residential RO housings (seals in 2.0–2.05\" ID pressure vessels)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial safety\u003c\/strong\u003e — Compatible with NSF\/ANSI 58 certified drinking water systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003ePermeate Flow Rate: 50 GPD (7.9 L\/h) at 60 psi\u003c\/li\u003e\n\u003cli\u003eStabilized Salt Rejection: 98% (minimum 96%)\u003c\/li\u003e\n\u003cli\u003eMembrane Type: Polyamide Thin-Film Composite (TFC)\u003c\/li\u003e\n\u003cli\u003eMaximum Operating Pressure: 150 psi (10 bar)\u003c\/li\u003e\n\u003cli\u003eMaximum Operating Temperature: 113°F (45°C)\u003c\/li\u003e\n\u003cli\u003epH Range (Continuous): 4–11\u003c\/li\u003e\n\u003cli\u003eFree Chlorine Tolerance: \u0026lt; 0.1 ppm\u003c\/li\u003e\n\u003cli\u003eMaximum Feed Flow Rate: 2.0 gpm\u003c\/li\u003e\n\u003cli\u003eDimensions: 1.75\" diameter × 11.74\" length\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp dir=\"auto\"\u003eWhether you're building a new RO system or replacing an aging membrane, the FilmTec™ TT-1812-50 delivers reliable purity without unnecessary premium markup. It performs best with proper pre-filtration (sediment + carbon) to protect against chlorine and particulates that can shorten membrane life.\u003c\/p\u003e","brand":"DuPont TapTec","offers":[{"title":"Default Title","offer_id":46942813520112,"sku":null,"price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_b6e37820-c0f2-4c85-aacd-2895a12a3086.png?v=1777062273"},{"product_id":"tw30-4014","title":"DuPont FilmTec TW30-4014 – 4\" Reverse Osmosis Membrane","description":"\u003cp data-start=\"548\" data-end=\"986\"\u003eThe \u003cstrong data-start=\"552\" data-end=\"580\"\u003eDuPont FilmTec TW30-4014\u003c\/strong\u003e is a premium \u003cstrong data-start=\"594\" data-end=\"621\"\u003e4\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-start=\"636\" data-end=\"673\"\u003ereverse osmosis (RO) applications\u003c\/strong\u003e requiring \u003cstrong data-start=\"684\" data-end=\"738\"\u003ehigh water purity and superior contaminant removal\u003c\/strong\u003e. Engineered with \u003cstrong data-start=\"756\" data-end=\"796\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane ensures \u003cstrong data-start=\"820\" data-end=\"890\"\u003eoptimal salt rejection, high efficiency, and long-term reliability\u003c\/strong\u003e, making it ideal for \u003cstrong data-start=\"912\" data-end=\"983\"\u003eindustrial, commercial, and food \u0026amp; beverage water treatment systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"988\" data-end=\"1011\"\u003e\u003cstrong data-start=\"992\" data-end=\"1009\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1012\" data-end=\"1816\"\u003e✔️ \u003cstrong data-start=\"1015\" data-end=\"1030\"\u003e4\" Diameter\u003c\/strong\u003e – Standard size for mid-capacity reverse osmosis systems\u003cbr data-start=\"1087\" data-end=\"1090\"\u003e✔️ \u003cstrong data-start=\"1093\" data-end=\"1122\"\u003eDuPont FilmTec Technology\u003c\/strong\u003e – Industry-leading membrane for exceptional water purification\u003cbr data-start=\"1185\" data-end=\"1188\"\u003e✔️ \u003cstrong data-start=\"1191\" data-end=\"1214\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes dissolved solids, organics, and other contaminants\u003cbr data-start=\"1287\" data-end=\"1290\"\u003e✔️ \u003cstrong data-start=\"1293\" data-end=\"1332\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and ensures consistent filtration performance\u003cbr data-start=\"1400\" data-end=\"1403\"\u003e✔️ \u003cstrong data-start=\"1406\" data-end=\"1436\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maximizes water output while maintaining energy efficiency\u003cbr data-start=\"1497\" data-end=\"1500\"\u003e✔️ \u003cstrong data-start=\"1503\" data-end=\"1543\"\u003eIndustrial \u0026amp; Commercial Applications\u003c\/strong\u003e – Ideal for food and beverage processing, pharmaceuticals, and high-purity water systems\u003cbr data-start=\"1632\" data-end=\"1635\"\u003e✔️ \u003cstrong data-start=\"1638\" data-end=\"1665\"\u003eReliable \u0026amp; Long-Lasting\u003c\/strong\u003e – Built for extended membrane life with minimal maintenance\u003cbr data-start=\"1725\" data-end=\"1728\"\u003e✔️ \u003cstrong data-start=\"1731\" data-end=\"1765\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing RO systems\u003c\/p\u003e\n\u003cp data-start=\"1818\" data-end=\"2084\"\u003eThe \u003cstrong data-start=\"1822\" data-end=\"1874\"\u003eDuPont FilmTec TW30-4014 4\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-start=\"1882\" data-end=\"1939\"\u003eperfect solution for high-efficiency water filtration\u003c\/strong\u003e, offering \u003cstrong data-start=\"1950\" data-end=\"2039\"\u003esuperior contaminant removal, long-term reliability, and optimized system performance\u003c\/strong\u003e in industrial and commercial applications.\u003c\/p\u003e\n\u003cp data-start=\"2086\" data-end=\"2133\"\u003e \u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942813585648,"sku":null,"price":260.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_125bb3ce-c733-4ac4-9f1f-175b0891a547.png?v=1777062273"},{"product_id":"esna1-lf2-ld","title":"Hydranautics ESNA1 LF2 LD – 8\" Membrane","description":"\u003cp data-end=\"1129\" data-start=\"572\"\u003eThe \u003cstrong data-end=\"605\" data-start=\"576\"\u003eHydranautics ESNA1 LF2 LD\u003c\/strong\u003e is a high-performance \u003cstrong data-end=\"655\" data-start=\"628\"\u003e8\" replacement membrane\u003c\/strong\u003e, engineered for \u003cstrong data-end=\"708\" data-start=\"672\"\u003enanofiltration (NF) applications\u003c\/strong\u003e requiring \u003cstrong data-end=\"790\" data-start=\"719\"\u003eefficient contaminant removal, high flow rates, and minimal fouling\u003c\/strong\u003e. Featuring \u003cstrong data-end=\"860\" data-start=\"802\"\u003eLow Fouling (LF2) and Low Differential (LD) Technology\u003c\/strong\u003e, this membrane resists \u003cstrong data-end=\"910\" data-start=\"884\"\u003escaling and biofouling\u003c\/strong\u003e, ensuring \u003cstrong data-end=\"978\" data-start=\"921\"\u003elonger operational life and reduced maintenance costs\u003c\/strong\u003e. It is ideal for \u003cstrong data-end=\"1053\" data-start=\"996\"\u003eindustrial, commercial, and municipal water treatment\u003c\/strong\u003e, providing \u003cstrong data-end=\"1126\" data-start=\"1065\"\u003eselective salt rejection and high-purity water production\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-end=\"1154\" data-start=\"1131\"\u003e\u003cstrong data-end=\"1152\" data-start=\"1135\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2167\" data-start=\"1155\"\u003e✔️ \u003cstrong data-end=\"1173\" data-start=\"1158\"\u003e8\" Diameter\u003c\/strong\u003e – Standard size for high-capacity nanofiltration systems\u003cbr data-end=\"1233\" data-start=\"1230\"\u003e✔️ \u003cstrong data-end=\"1263\" data-start=\"1236\"\u003eHydranautics Technology\u003c\/strong\u003e – Industry-leading membrane innovation for advanced water treatment\u003cbr data-end=\"1334\" data-start=\"1331\"\u003e✔️ \u003cstrong data-end=\"1366\" data-start=\"1337\"\u003eLow-Energy (ESNA1) Design\u003c\/strong\u003e – Operates at reduced pressure for energy savings\u003cbr data-end=\"1419\" data-start=\"1416\"\u003e✔️ \u003cstrong data-end=\"1478\" data-start=\"1422\"\u003eLow Fouling (LF2) \u0026amp; Low Differential (LD) Technology\u003c\/strong\u003e – Minimizes biofouling, scaling, and differential pressure drop\u003cbr data-end=\"1545\" data-start=\"1542\"\u003e✔️ \u003cstrong data-end=\"1576\" data-start=\"1548\"\u003eSelective Salt Rejection\u003c\/strong\u003e – Removes contaminants while retaining beneficial minerals\u003cbr data-end=\"1638\" data-start=\"1635\"\u003e✔️ \u003cstrong data-end=\"1680\" data-start=\"1641\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Ensures durability and long-term filtration performance\u003cbr data-end=\"1741\" data-start=\"1738\"\u003e✔️ \u003cstrong data-end=\"1774\" data-start=\"1744\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Delivers high water output with improved recovery rates\u003cbr data-end=\"1835\" data-start=\"1832\"\u003e✔️ \u003cstrong data-end=\"1889\" data-start=\"1838\"\u003eIndustrial, Commercial \u0026amp; Municipal Applications\u003c\/strong\u003e – Ideal for wastewater reclamation, food and beverage processing, and softening applications\u003cbr data-end=\"1985\" data-start=\"1982\"\u003e✔️ \u003cstrong data-end=\"2010\" data-start=\"1988\"\u003eDurable \u0026amp; Reliable\u003c\/strong\u003e – Designed for extended membrane life with minimal maintenance\u003cbr data-end=\"2076\" data-start=\"2073\"\u003e✔️ \u003cstrong data-end=\"2113\" data-start=\"2079\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing NF\/RO systems\u003c\/p\u003e\n\u003cp data-end=\"2427\" data-start=\"2169\"\u003eThe \u003cstrong data-end=\"2226\" data-start=\"2173\"\u003eHydranautics ESNA1 LF2 LD 8\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-end=\"2288\" data-start=\"2234\"\u003eideal solution for high-efficiency water treatment\u003c\/strong\u003e, offering \u003cstrong data-end=\"2382\" data-start=\"2299\"\u003eoptimal performance, reduced fouling, energy savings, and long-term reliability\u003c\/strong\u003e in industrial and commercial applications.\u003c\/p\u003e\n\u003cp data-end=\"2476\" data-start=\"2429\"\u003e \u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46942813716720,"sku":null,"price":676.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/ESNA1LF2LD.png?v=1776309204"},{"product_id":"esna1-lf-ld-4040","title":"Hydranautics ESNA1 LF LD 4040 – 4\" Membrane","description":"\u003cp data-start=\"584\" data-end=\"1142\"\u003eThe \u003cstrong data-start=\"588\" data-end=\"621\"\u003eHydranautics ESNA1 LF LD 4040\u003c\/strong\u003e is a high-performance \u003cstrong data-start=\"644\" data-end=\"671\"\u003e4\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-start=\"686\" data-end=\"722\"\u003enanofiltration (NF) applications\u003c\/strong\u003e requiring \u003cstrong data-start=\"733\" data-end=\"804\"\u003eefficient contaminant removal, high flow rates, and minimal fouling\u003c\/strong\u003e. Featuring \u003cstrong data-start=\"816\" data-end=\"873\"\u003eLow Fouling (LF) and Low Differential (LD) Technology\u003c\/strong\u003e, this membrane resists \u003cstrong data-start=\"897\" data-end=\"923\"\u003escaling and biofouling\u003c\/strong\u003e, ensuring \u003cstrong data-start=\"934\" data-end=\"991\"\u003elonger operational life and reduced maintenance costs\u003c\/strong\u003e. It is ideal for \u003cstrong data-start=\"1009\" data-end=\"1066\"\u003eindustrial, commercial, and municipal water treatment\u003c\/strong\u003e, providing \u003cstrong data-start=\"1078\" data-end=\"1139\"\u003eselective salt rejection and high-purity water production\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"1144\" data-end=\"1167\"\u003e\u003cstrong data-start=\"1148\" data-end=\"1165\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1168\" data-end=\"2178\"\u003e✔️ \u003cstrong data-start=\"1171\" data-end=\"1186\"\u003e4\" Diameter\u003c\/strong\u003e – Standard size for mid-capacity nanofiltration systems\u003cbr data-start=\"1242\" data-end=\"1245\"\u003e✔️ \u003cstrong data-start=\"1248\" data-end=\"1275\"\u003eHydranautics Technology\u003c\/strong\u003e – Industry-leading membrane innovation for advanced water treatment\u003cbr data-start=\"1343\" data-end=\"1346\"\u003e✔️ \u003cstrong data-start=\"1349\" data-end=\"1378\"\u003eLow-Energy (ESNA1) Design\u003c\/strong\u003e – Operates at reduced pressure for energy savings\u003cbr data-start=\"1428\" data-end=\"1431\"\u003e✔️ \u003cstrong data-start=\"1434\" data-end=\"1489\"\u003eLow Fouling (LF) \u0026amp; Low Differential (LD) Technology\u003c\/strong\u003e – Minimizes biofouling, scaling, and differential pressure drop\u003cbr data-start=\"1553\" data-end=\"1556\"\u003e✔️ \u003cstrong data-start=\"1559\" data-end=\"1587\"\u003eSelective Salt Rejection\u003c\/strong\u003e – Removes contaminants while retaining beneficial minerals\u003cbr data-start=\"1646\" data-end=\"1649\"\u003e✔️ \u003cstrong data-start=\"1652\" data-end=\"1691\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Ensures durability and long-term filtration performance\u003cbr data-start=\"1749\" data-end=\"1752\"\u003e✔️ \u003cstrong data-start=\"1755\" data-end=\"1785\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Delivers high water output with improved recovery rates\u003cbr data-start=\"1843\" data-end=\"1846\"\u003e✔️ \u003cstrong data-start=\"1849\" data-end=\"1900\"\u003eIndustrial, Commercial \u0026amp; Municipal Applications\u003c\/strong\u003e – Ideal for wastewater reclamation, food and beverage processing, and softening applications\u003cbr data-start=\"1993\" data-end=\"1996\"\u003e✔️ \u003cstrong data-start=\"1999\" data-end=\"2021\"\u003eDurable \u0026amp; Reliable\u003c\/strong\u003e – Designed for extended membrane life with minimal maintenance\u003cbr data-start=\"2084\" data-end=\"2087\"\u003e✔️ \u003cstrong data-start=\"2090\" data-end=\"2124\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing NF\/RO systems\u003c\/p\u003e\n\u003cp data-start=\"2180\" data-end=\"2442\"\u003eThe \u003cstrong data-start=\"2184\" data-end=\"2241\"\u003eHydranautics ESNA1 LF LD 4040 4\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-start=\"2249\" data-end=\"2303\"\u003eideal solution for high-efficiency water treatment\u003c\/strong\u003e, offering \u003cstrong data-start=\"2314\" data-end=\"2397\"\u003eoptimal performance, reduced fouling, energy savings, and long-term reliability\u003c\/strong\u003e in industrial and commercial applications.\u003c\/p\u003e\n\u003cp data-start=\"2444\" data-end=\"2491\"\u003e \u003c\/p\u003e","brand":"Hydranautics","offers":[{"title":"Default Title","offer_id":46942813815024,"sku":null,"price":272.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/Lqk4i.jpg?v=1776309446"},{"product_id":"filmtec-tt-1812-75","title":"DuPont FilmTec TT-1812-75 – 1.8\" Reverse Osmosis Membrane","description":"\u003cp data-start=\"549\" data-end=\"1053\"\u003eThe \u003cstrong data-start=\"553\" data-end=\"582\"\u003eDuPont FilmTec TT 1812-75\u003c\/strong\u003e is a premium \u003cstrong data-start=\"596\" data-end=\"625\"\u003e1.8\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-start=\"640\" data-end=\"705\"\u003eresidential and light commercial reverse osmosis (RO) systems\u003c\/strong\u003e that require \u003cstrong data-start=\"719\" data-end=\"785\"\u003ehigh-purity water production and efficient contaminant removal\u003c\/strong\u003e. Built with \u003cstrong data-start=\"798\" data-end=\"838\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane provides \u003cstrong data-start=\"863\" data-end=\"926\"\u003esuperior filtration with a 75-gallon per day (GPD) capacity\u003c\/strong\u003e, making it ideal for \u003cstrong data-start=\"948\" data-end=\"1050\"\u003ehome drinking water systems, small-scale food \u0026amp; beverage processing, and office water purification\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"1055\" data-end=\"1078\"\u003e\u003cstrong data-start=\"1059\" data-end=\"1076\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1079\" data-end=\"2026\"\u003e✔️ \u003cstrong data-start=\"1082\" data-end=\"1099\"\u003e1.8\" Diameter\u003c\/strong\u003e – Compact size for standard residential and light commercial RO systems\u003cbr data-start=\"1171\" data-end=\"1174\"\u003e✔️ \u003cstrong data-start=\"1177\" data-end=\"1206\"\u003eDuPont FilmTec Technology\u003c\/strong\u003e – Industry-leading membrane for high-efficiency water purification\u003cbr data-start=\"1273\" data-end=\"1276\"\u003e✔️ \u003cstrong data-start=\"1279\" data-end=\"1314\"\u003e75 Gallons Per Day (GPD) Output\u003c\/strong\u003e – Ensures a reliable supply of clean, high-purity water\u003cbr data-start=\"1370\" data-end=\"1373\"\u003e✔️ \u003cstrong data-start=\"1376\" data-end=\"1399\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes up to 99% of dissolved solids, bacteria, and contaminants\u003cbr data-start=\"1479\" data-end=\"1482\"\u003e✔️ \u003cstrong data-start=\"1485\" data-end=\"1524\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and ensures consistent filtration performance\u003cbr data-start=\"1592\" data-end=\"1595\"\u003e✔️ \u003cstrong data-start=\"1598\" data-end=\"1628\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maintains high water production while minimizing wastewater output\u003cbr data-start=\"1697\" data-end=\"1700\"\u003e✔️ \u003cstrong data-start=\"1703\" data-end=\"1750\"\u003eResidential \u0026amp; Light Commercial Applications\u003c\/strong\u003e – Ideal for under-sink RO systems, small businesses, and food service applications\u003cbr data-start=\"1833\" data-end=\"1836\"\u003e✔️ \u003cstrong data-start=\"1839\" data-end=\"1869\"\u003eEnergy-Efficient Operation\u003c\/strong\u003e – Designed for high performance with low energy consumption\u003cbr data-start=\"1929\" data-end=\"1932\"\u003e✔️ \u003cstrong data-start=\"1935\" data-end=\"1969\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into standard 1.8\" RO housings\u003c\/p\u003e\n\u003cp data-start=\"2028\" data-end=\"2306\"\u003eThe \u003cstrong data-start=\"2032\" data-end=\"2087\"\u003eDuPont FilmTec TT 1812-75 1.8\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-start=\"2095\" data-end=\"2156\"\u003eperfect choice for high-quality drinking water filtration\u003c\/strong\u003e, offering \u003cstrong data-start=\"2167\" data-end=\"2247\"\u003eexceptional contaminant removal, high water output, and long-term durability\u003c\/strong\u003e for residential and small-scale commercial applications.\u003c\/p\u003e\n\u003cp data-start=\"2308\" data-end=\"2355\"\u003e \u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942813847792,"sku":null,"price":33.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_1c3b1b61-41e9-4891-ba2a-8ac533fad8ee.png?v=1777062282"},{"product_id":"tw30-2521","title":"DuPont FilmTec TW30-2521 – 2.5\" Reverse Osmosis Membrane","description":"\u003cp data-start=\"552\" data-end=\"967\"\u003eThe \u003cstrong data-start=\"556\" data-end=\"584\"\u003eDuPont FilmTec TW30-2521\u003c\/strong\u003e is a premium \u003cstrong data-start=\"598\" data-end=\"627\"\u003e2.5\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-start=\"642\" data-end=\"679\"\u003ereverse osmosis (RO) applications\u003c\/strong\u003e requiring \u003cstrong data-start=\"690\" data-end=\"744\"\u003esuperior contaminant removal and high water purity\u003c\/strong\u003e. Utilizing \u003cstrong data-start=\"756\" data-end=\"796\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane ensures \u003cstrong data-start=\"820\" data-end=\"871\"\u003eoptimal salt rejection and efficient water flow\u003c\/strong\u003e, making it ideal for \u003cstrong data-start=\"893\" data-end=\"964\"\u003eindustrial, commercial, and food \u0026amp; beverage water treatment systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-start=\"969\" data-end=\"992\"\u003e\u003cstrong data-start=\"973\" data-end=\"990\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"993\" data-end=\"1783\"\u003e✔️ \u003cstrong data-start=\"996\" data-end=\"1013\"\u003e2.5\" Diameter\u003c\/strong\u003e – Compact size for mid-capacity reverse osmosis systems\u003cbr data-start=\"1069\" data-end=\"1072\"\u003e✔️ \u003cstrong data-start=\"1075\" data-end=\"1104\"\u003eDuPont FilmTec Technology\u003c\/strong\u003e – Industry-leading performance for water purification\u003cbr data-start=\"1158\" data-end=\"1161\"\u003e✔️ \u003cstrong data-start=\"1164\" data-end=\"1187\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes dissolved solids, organics, and contaminants\u003cbr data-start=\"1254\" data-end=\"1257\"\u003e✔️ \u003cstrong data-start=\"1260\" data-end=\"1299\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and ensures consistent filtration performance\u003cbr data-start=\"1367\" data-end=\"1370\"\u003e✔️ \u003cstrong data-start=\"1373\" data-end=\"1403\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maximizes water output while maintaining energy efficiency\u003cbr data-start=\"1464\" data-end=\"1467\"\u003e✔️ \u003cstrong data-start=\"1470\" data-end=\"1510\"\u003eIndustrial \u0026amp; Commercial Applications\u003c\/strong\u003e – Ideal for food and beverage processing, pharmaceuticals, and high-purity water systems\u003cbr data-start=\"1599\" data-end=\"1602\"\u003e✔️ \u003cstrong data-start=\"1605\" data-end=\"1632\"\u003eReliable \u0026amp; Long-Lasting\u003c\/strong\u003e – Built for extended membrane life with minimal maintenance\u003cbr data-start=\"1692\" data-end=\"1695\"\u003e✔️ \u003cstrong data-start=\"1698\" data-end=\"1732\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing RO systems\u003c\/p\u003e\n\u003cp data-start=\"1785\" data-end=\"2053\"\u003eThe \u003cstrong data-start=\"1789\" data-end=\"1843\"\u003eDuPont FilmTec TW30-2521 2.5\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-start=\"1851\" data-end=\"1908\"\u003eperfect solution for high-efficiency water filtration\u003c\/strong\u003e, offering \u003cstrong data-start=\"1919\" data-end=\"2008\"\u003esuperior contaminant removal, long-term reliability, and optimized system performance\u003c\/strong\u003e in industrial and commercial applications.\u003c\/p\u003e\n\u003cp data-start=\"2055\" data-end=\"2102\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/Dow-Filmtec-SW30-2521.pdf?v=1743177381\" target=\"_blank\" title=\"Download TW30 2521 Datasheet\" rel=\"noopener\"\u003eDownload TW30-2521 Datasheet\u003c\/a\u003e\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942813880560,"sku":null,"price":170.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/f7a82a58-1589-4453-a6cd-26d32b6e78ae.jpg?v=1772143009"},{"product_id":"nf270-2540","title":"DuPont FilmTec NF270-2540 – 2.5\" Nanofiltration Replacement Membrane","description":"\u003cp data-end=\"955\" data-start=\"530\"\u003eThe \u003cstrong data-end=\"563\" data-start=\"534\"\u003eDuPont FilmTec NF270-2540\u003c\/strong\u003e is a high-efficiency \u003cstrong data-end=\"614\" data-start=\"585\"\u003e2.5\" replacement membrane\u003c\/strong\u003e, designed for \u003cstrong data-end=\"665\" data-start=\"629\"\u003enanofiltration (NF) applications\u003c\/strong\u003e requiring \u003cstrong data-end=\"729\" data-start=\"676\"\u003ehigh flow rates and selective contaminant removal\u003c\/strong\u003e. Featuring \u003cstrong data-end=\"781\" data-start=\"741\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane operates at \u003cstrong data-end=\"865\" data-start=\"809\"\u003elow energy while maintaining high water productivity\u003c\/strong\u003e, making it ideal for \u003cstrong data-end=\"952\" data-start=\"887\"\u003eindustrial, commercial, and municipal water treatment systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-end=\"980\" data-start=\"957\"\u003e\u003cstrong data-end=\"978\" data-start=\"961\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1927\" data-start=\"981\"\u003e✔️ \u003cstrong data-end=\"1001\" data-start=\"984\"\u003e2.5\" Diameter\u003c\/strong\u003e – Compact size for smaller nanofiltration systems\u003cbr data-end=\"1054\" data-start=\"1051\"\u003e✔️ \u003cstrong data-end=\"1086\" data-start=\"1057\"\u003eDuPont FilmTec Technology\u003c\/strong\u003e – Trusted for industry-leading nanofiltration performance\u003cbr data-end=\"1147\" data-start=\"1144\"\u003e✔️ \u003cstrong data-end=\"1194\" data-start=\"1150\"\u003eHigh-Flow Nanofiltration (NF) Technology\u003c\/strong\u003e – Provides efficient separation of organics, hardness, and salts while retaining beneficial minerals\u003cbr data-end=\"1298\" data-start=\"1295\"\u003e✔️ \u003cstrong data-end=\"1340\" data-start=\"1301\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Ensures superior durability and consistent filtration performance\u003cbr data-end=\"1411\" data-start=\"1408\"\u003e✔️ \u003cstrong data-end=\"1438\" data-start=\"1414\"\u003eLow-Energy Operation\u003c\/strong\u003e – Optimized for high water productivity with reduced energy costs\u003cbr data-end=\"1507\" data-start=\"1504\"\u003e✔️ \u003cstrong data-end=\"1540\" data-start=\"1510\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maximizes water output while maintaining high filtration efficiency\u003cbr data-is-only-node=\"\" data-end=\"1613\" data-start=\"1610\"\u003e✔️ \u003cstrong data-end=\"1667\" data-start=\"1616\"\u003eIndustrial, Commercial \u0026amp; Municipal Applications\u003c\/strong\u003e – Ideal for water softening, beverage processing, and wastewater treatment\u003cbr data-end=\"1745\" data-start=\"1742\"\u003e✔️ \u003cstrong data-end=\"1770\" data-start=\"1748\"\u003eDurable \u0026amp; Reliable\u003c\/strong\u003e – Designed for extended membrane life with minimal maintenance\u003cbr data-end=\"1836\" data-start=\"1833\"\u003e✔️ \u003cstrong data-end=\"1873\" data-start=\"1839\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing NF\/RO systems\u003c\/p\u003e\n\u003cp data-end=\"2178\" data-start=\"1929\"\u003eThe \u003cstrong data-end=\"1988\" data-start=\"1933\"\u003eDuPont FilmTec NF270-2540 2.5\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-end=\"2048\" data-start=\"1996\"\u003eideal choice for high-efficiency water treatment\u003c\/strong\u003e, providing \u003cstrong data-end=\"2137\" data-start=\"2060\"\u003efast water flow, selective salt rejection, and energy-efficient operation\u003c\/strong\u003e in industrial and commercial settings.\u003c\/p\u003e\n\u003cp data-end=\"2227\" data-start=\"2180\"\u003e \u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942813946096,"sku":null,"price":275.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/NF2704040_6c8ad430-16bb-4131-af89-81d123257c0b.png?v=1779856428"},{"product_id":"nf90-4040","title":"DuPont FilmTec NF90-4040 – 4\" Nanofiltration Membrane","description":"\u003cp data-end=\"987\" data-start=\"541\"\u003eThe \u003cstrong data-end=\"573\" data-start=\"545\"\u003eDuPont FilmTec NF90-4040\u003c\/strong\u003e is a high-performance \u003cstrong data-end=\"623\" data-start=\"596\"\u003e4\" replacement membrane\u003c\/strong\u003e, engineered for \u003cstrong data-end=\"676\" data-start=\"640\"\u003enanofiltration (NF) applications\u003c\/strong\u003e requiring \u003cstrong data-end=\"748\" data-start=\"687\"\u003esuperior salt rejection and selective contaminant removal\u003c\/strong\u003e. Designed with \u003cstrong data-end=\"804\" data-start=\"764\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane provides \u003cstrong data-end=\"897\" data-start=\"829\"\u003eefficient separation of dissolved solids, organics, and hardness\u003c\/strong\u003e, making it ideal for \u003cstrong data-end=\"984\" data-start=\"919\"\u003eindustrial, commercial, and municipal water treatment systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-end=\"1012\" data-start=\"989\"\u003e\u003cstrong data-end=\"1010\" data-start=\"993\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1989\" data-start=\"1013\"\u003e✔️ \u003cstrong data-end=\"1031\" data-start=\"1016\"\u003e4\" Diameter\u003c\/strong\u003e – Standard size for mid-capacity nanofiltration systems\u003cbr data-end=\"1090\" data-start=\"1087\"\u003e✔️ \u003cstrong data-end=\"1122\" data-start=\"1093\"\u003eDuPont FilmTec Technology\u003c\/strong\u003e – Industry-leading nanofiltration membrane for high-efficiency water purification\u003cbr data-end=\"1207\" data-start=\"1204\"\u003e✔️ \u003cstrong data-end=\"1233\" data-start=\"1210\"\u003eHigh Salt Rejection\u003c\/strong\u003e – Effectively removes dissolved salts, organics, and hardness while retaining beneficial minerals\u003cbr data-end=\"1334\" data-start=\"1331\"\u003e✔️ \u003cstrong data-end=\"1376\" data-start=\"1337\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Ensures long-lasting performance and superior filtration efficiency\u003cbr data-end=\"1449\" data-start=\"1446\"\u003e✔️ \u003cstrong data-end=\"1476\" data-start=\"1452\"\u003eLow-Energy Operation\u003c\/strong\u003e – Optimized for high water productivity with reduced energy consumption\u003cbr data-end=\"1551\" data-start=\"1548\"\u003e✔️ \u003cstrong data-end=\"1584\" data-start=\"1554\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Delivers superior water output while maintaining filtration efficiency\u003cbr data-end=\"1660\" data-start=\"1657\"\u003e✔️ \u003cstrong data-end=\"1714\" data-start=\"1663\"\u003eIndustrial, Commercial \u0026amp; Municipal Applications\u003c\/strong\u003e – Ideal for food and beverage processing, softening applications, and wastewater treatment\u003cbr data-end=\"1808\" data-start=\"1805\"\u003e✔️ \u003cstrong data-end=\"1833\" data-start=\"1811\"\u003eDurable \u0026amp; Reliable\u003c\/strong\u003e – Designed for extended membrane life and minimal maintenance\u003cbr data-end=\"1898\" data-start=\"1895\"\u003e✔️ \u003cstrong data-end=\"1935\" data-start=\"1901\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing NF\/RO systems\u003c\/p\u003e\n\u003cp data-end=\"2233\" data-start=\"1991\"\u003eThe \u003cstrong data-end=\"2047\" data-start=\"1995\"\u003eDuPont FilmTec NF90-4040 4\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-end=\"2107\" data-start=\"2055\"\u003eideal choice for high-efficiency water treatment\u003c\/strong\u003e, providing \u003cstrong data-end=\"2204\" data-start=\"2119\"\u003eexceptional salt rejection, energy-efficient operation, and long-term reliability\u003c\/strong\u003e in demanding applications.\u003c\/p\u003e\n\u003cp data-end=\"2282\" data-start=\"2235\"\u003e \u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942814044400,"sku":null,"price":290.0,"currency_code":"USD","in_stock":true}]},{"product_id":"dow®-filmtec™-tw30-1812-36","title":"DOW FilmTec TW30-1812-36 – 1.8\" Reverse Osmosis Membrane","description":"\u003cp data-end=\"966\" data-start=\"555\"\u003eThe \u003cstrong data-end=\"589\" data-start=\"559\"\u003eDOW® FilmTec™ TW30-1812-36\u003c\/strong\u003e is a premium \u003cstrong data-end=\"632\" data-start=\"603\"\u003e1.8\" replacement membrane\u003c\/strong\u003e, engineered for \u003cstrong data-end=\"714\" data-start=\"649\"\u003eresidential and light commercial reverse osmosis (RO) systems\u003c\/strong\u003e. Featuring \u003cstrong data-end=\"766\" data-start=\"726\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane ensures \u003cstrong data-end=\"846\" data-start=\"790\"\u003ehigh-purity water production with 98% salt rejection\u003c\/strong\u003e, making it ideal for \u003cstrong data-end=\"963\" data-start=\"868\"\u003ehome drinking water systems, small-scale water purification, and food\/beverage applications\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3 data-end=\"991\" data-start=\"968\"\u003e\u003cstrong data-end=\"989\" data-start=\"972\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1923\" data-start=\"992\"\u003e✔️ \u003cstrong data-end=\"1012\" data-start=\"995\"\u003e1.8\" Diameter\u003c\/strong\u003e – Compact size for residential and light commercial RO systems\u003cbr data-end=\"1078\" data-start=\"1075\"\u003e✔️ \u003cstrong data-end=\"1109\" data-start=\"1081\"\u003eDOW® FilmTec™ Technology\u003c\/strong\u003e – Industry-leading performance for superior water filtration\u003cbr data-end=\"1173\" data-start=\"1170\"\u003e✔️ \u003cstrong data-end=\"1198\" data-start=\"1176\"\u003e98% Salt Rejection\u003c\/strong\u003e – Removes dissolved solids, contaminants, and impurities for high-purity water\u003cbr data-end=\"1280\" data-start=\"1277\"\u003e✔️ \u003cstrong data-end=\"1322\" data-start=\"1283\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Enhances durability and ensures consistent filtration performance\u003cbr data-end=\"1393\" data-start=\"1390\"\u003e✔️ \u003cstrong data-end=\"1426\" data-start=\"1396\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Provides up to 36 gallons per day (GPD) of clean water\u003cbr data-end=\"1486\" data-start=\"1483\"\u003e✔️ \u003cstrong data-end=\"1536\" data-start=\"1489\"\u003eResidential \u0026amp; Light Commercial Applications\u003c\/strong\u003e – Ideal for drinking water filtration, under-sink RO systems, and small-scale water purification\u003cbr data-end=\"1636\" data-start=\"1633\"\u003e✔️ \u003cstrong data-end=\"1669\" data-start=\"1639\"\u003eEnergy-Efficient Operation\u003c\/strong\u003e – Delivers high-quality water with minimal energy consumption\u003cbr data-end=\"1734\" data-start=\"1731\"\u003e✔️ \u003cstrong data-end=\"1763\" data-start=\"1737\"\u003eDurable \u0026amp; Long-Lasting\u003c\/strong\u003e – Designed for extended membrane life and reliable performance\u003cbr data-end=\"1829\" data-start=\"1826\"\u003e✔️ \u003cstrong data-end=\"1866\" data-start=\"1832\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into standard 1.8\" RO housings\u003c\/p\u003e\n\u003cp data-end=\"2195\" data-start=\"1925\"\u003eThe \u003cstrong data-end=\"1985\" data-start=\"1929\"\u003eDOW® FilmTec™ TW30-1812-36 1.8\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-end=\"2056\" data-start=\"1993\"\u003eperfect solution for high-quality drinking water filtration\u003c\/strong\u003e, offering \u003cstrong data-end=\"2148\" data-start=\"2067\"\u003eefficient contaminant removal, long-term durability, and superior performance\u003c\/strong\u003e in residential and small-scale applications.\u003c\/p\u003e\n\u003cp data-end=\"2244\" data-start=\"2197\"\u003e \u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942814109936,"sku":null,"price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/download_d08f611a-8387-4818-8d94-b25dd8108711.png?v=1777062287"},{"product_id":"tw30-2026","title":"TW30-2026 2\" Tap Water 220 GPD RO Membrane","description":"\u003cp\u003eTW30 2026 2\" Tap Water 220 GPD RO Membrane is a must-have for any industrial or residential water filtration system. With advanced Filmtec technology and a 2\" size, this membrane effectively removes impurities from brackish water to produce a clean and pure output. Improve the quality of your drinking water with this reliable and high-performing membrane.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/TW30_2026.pdf?v=1743177381\" target=\"_blank\" title=\"Download TW30 2026 Datasheet\" rel=\"noopener\"\u003eDownload TW30 2026 Datasheet\u003c\/a\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942814142704,"sku":null,"price":150.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/411dc2d2-d13e-4086-b7e4-240c0a4e0809_1.jpg?v=1772143356"},{"product_id":"nf90-400-34i","title":"DuPont NF90-400\/34i – 8\" Nanofiltration Membrane","description":"\u003cp data-end=\"1090\" data-start=\"545\"\u003eThe \u003cstrong data-end=\"572\" data-start=\"549\"\u003eDuPont NF90 400\/34i\u003c\/strong\u003e is an advanced \u003cstrong data-end=\"615\" data-start=\"588\"\u003e8\" replacement membrane\u003c\/strong\u003e, engineered for \u003cstrong data-end=\"668\" data-start=\"632\"\u003enanofiltration (NF) applications\u003c\/strong\u003e that require \u003cstrong data-end=\"740\" data-start=\"682\"\u003ehigh contaminant removal with selective salt rejection\u003c\/strong\u003e. Designed with \u003cstrong data-end=\"796\" data-start=\"756\"\u003ethin-film composite (TFC) technology\u003c\/strong\u003e, this membrane ensures \u003cstrong data-end=\"877\" data-start=\"820\"\u003eefficient separation of organics, hardness, and salts\u003c\/strong\u003e, making it ideal for \u003cstrong data-end=\"956\" data-start=\"899\"\u003eindustrial, commercial, and municipal water treatment\u003c\/strong\u003e. The \u003cstrong data-end=\"997\" data-start=\"962\"\u003einterlocking (i) end cap design\u003c\/strong\u003e enhances \u003cstrong data-end=\"1046\" data-start=\"1007\"\u003esealing and simplifies installation\u003c\/strong\u003e, reducing downtime and maintenance costs.\u003c\/p\u003e\n\u003ch3 data-end=\"1115\" data-start=\"1092\"\u003e\u003cstrong data-end=\"1113\" data-start=\"1096\"\u003eKey Features:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2144\" data-start=\"1116\"\u003e✔️ \u003cstrong data-end=\"1134\" data-start=\"1119\"\u003e8\" Diameter\u003c\/strong\u003e – Standard size for high-capacity nanofiltration systems\u003cbr data-end=\"1194\" data-start=\"1191\"\u003e✔️ \u003cstrong data-end=\"1218\" data-start=\"1197\"\u003eDuPont Technology\u003c\/strong\u003e – Trusted for industry-leading water purification performance\u003cbr data-end=\"1283\" data-start=\"1280\"\u003e✔️ \u003cstrong data-end=\"1320\" data-start=\"1286\"\u003eNanofiltration (NF) Technology\u003c\/strong\u003e – Provides selective salt rejection while retaining beneficial minerals\u003cbr data-end=\"1395\" data-start=\"1392\"\u003e✔️ \u003cstrong data-end=\"1437\" data-start=\"1398\"\u003eThin-Film Composite (TFC) Structure\u003c\/strong\u003e – Ensures high efficiency in removing organics, hardness, and contaminants\u003cbr data-end=\"1515\" data-start=\"1512\"\u003e✔️ \u003cstrong data-end=\"1553\" data-start=\"1518\"\u003eInterlocking (i) End Cap Design\u003c\/strong\u003e – Enhances sealing, simplifies installation, and lowers maintenance costs\u003cbr data-end=\"1630\" data-start=\"1627\"\u003e✔️ \u003cstrong data-end=\"1663\" data-start=\"1633\"\u003eOptimized Flow Performance\u003c\/strong\u003e – Maintains high water output while reducing operating pressure\u003cbr data-end=\"1730\" data-start=\"1727\"\u003e✔️ \u003cstrong data-end=\"1757\" data-start=\"1733\"\u003eLow-Energy Operation\u003c\/strong\u003e – Reduces energy consumption while ensuring high water quality\u003cbr data-end=\"1823\" data-start=\"1820\"\u003e✔️ \u003cstrong data-end=\"1866\" data-start=\"1826\"\u003eIndustrial \u0026amp; Commercial Applications\u003c\/strong\u003e – Ideal for municipal water treatment, food and beverage processing, and softening applications\u003cbr data-end=\"1965\" data-start=\"1962\"\u003e✔️ \u003cstrong data-end=\"1990\" data-start=\"1968\"\u003eDurable \u0026amp; Reliable\u003c\/strong\u003e – Designed for extended lifespan and consistent performance\u003cbr data-end=\"2053\" data-start=\"2050\"\u003e✔️ \u003cstrong data-end=\"2090\" data-start=\"2056\"\u003eEasy Replacement \u0026amp; Maintenance\u003c\/strong\u003e – Seamlessly integrates into existing NF\/RO systems\u003c\/p\u003e\n\u003cp data-end=\"2403\" data-start=\"2146\"\u003eThe \u003cstrong data-end=\"2197\" data-start=\"2150\"\u003eDuPont NF90 400\/34i 8\" replacement membrane\u003c\/strong\u003e is the \u003cstrong data-end=\"2261\" data-start=\"2205\"\u003eperfect solution for high-efficiency water treatment\u003c\/strong\u003e, offering \u003cstrong data-end=\"2358\" data-start=\"2272\"\u003eselective salt rejection, superior organic removal, and energy-efficient operation\u003c\/strong\u003e in industrial and commercial applications.\u003c\/p\u003e\n\u003cp data-end=\"2452\" data-start=\"2405\"\u003e \u003c\/p\u003e","brand":"DuPont FilmTec","offers":[{"title":"Default Title","offer_id":46942814208240,"sku":null,"price":660.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0739\/9453\/5152\/files\/nf90400.34i.png?v=1779856559"}],"url":"https:\/\/knapprochicago.com\/collections\/all-manufacturers.oembed?page=3","provider":"KnappRO","version":"1.0","type":"link"}