{"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","url":"https:\/\/knapprochicago.com\/products\/filmtec-bw30-400-34i","provider":"KnappRO","version":"1.0","type":"link"}