LG BW 400 R G2 8" High Rejection Brackish Water RO Membrane | KnappRO

The 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.

Technical Specifications

• Permeate Flow: 11,500 GPD (43.5 m³/day)
• Stabilized Salt Rejection: 99.8%
• Minimum Salt Rejection: 99.65%
• Active Membrane Area: 400 ft² (37 m²)
• Element Size: 8" diameter × 40" length (8040)
• Feed Spacer: Low dP design for reduced pressure drop
• Membrane Type: Thin-Film Composite (TFC) with enhanced fouling resistance
• Maximum Operating Pressure: 600 psig
• Maximum Operating Temperature: 113°F (45°C)

Key Features:

✔️ 8" Diameter – Standard size for high-capacity reverse osmosis systems
✔️ LG Chem Technology – Cutting-edge membrane innovation for brackish water treatment
✔️ High Salt Rejection – Effectively removes dissolved solids, contaminants, and organics for ultra-pure water
✔️ Energy-Efficient Performance – Operates with lower energy consumption while maintaining high filtration efficiency
✔️ Optimized Flow Performance – Maximizes water output with reduced fouling potential
✔️ Thin-Film Composite (TFC) Structure – Enhances durability and long-term membrane life
✔️ Industrial, Commercial & Municipal Applications – Ideal for drinking water production, wastewater reclamation, and industrial process water treatment
✔️ Reliable & Long-Lasting – Built to withstand high-pressure operating conditions
✔️ Easy Replacement & Maintenance – Designed for seamless integration into existing RO systems

The LG BW 400 R G2 8" replacement membrane is the ideal choice for brackish water desalination, offering exceptional salt rejection, energy-efficient operation, and long-term durability for industrial and commercial use.

At 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.

Download LG BW 400 R G2 Datasheet