LG BW 400 ES 10,500 GPD at 150 PSI 8 x 40 inch 99.6% Rejection Membranes

LG Water Solutions BW 400 ES Energy-Saving Brackish Water RO Membrane (10,500 GPD)

For large-scale industrial water treatment, municipal drinking water production, and process water purification requiring maximum energy efficiency, the LG Water Solutions BW 400 ES is a high-performance brackish water reverse osmosis membrane. Engineered with LG Chem's innovative Thin Film Nanocomposite (TFN) technology, this 8-inch by 40-inch element delivers exceptional permeability and high salt rejection at significantly lower feed pressures than conventional brackish elements. This advanced chemistry substantially reduces overall operating costs and energy consumption without sacrificing permeate water quality or long-term durability.

Designed to fit standard 8-inch commercial pressure vessels, the BW 400 ES features an expansive 400 square feet of active membrane surface area and incorporates an optimized 34-mil feed spacer to minimize differential pressure and resist fouling. Evaluated under standard test conditions with a 2,000 ppm NaCl feed stream at an applied pressure of just 150 PSI, this heavy-duty element produces a robust nominal permeate flow rate of 10,500 gallons per day (GPD) while maintaining an outstanding stabilized salt rejection rate of 99.6%. Certified to NSF/ANSI Standard 61 for safe use in drinking water applications, it provides a reliable, cost-effective solution for complex industrial process water, wastewater reuse, and municipal utilities.