LG BW 4040 AFR 2,300 GPD at 225 PSI 4 x 40 inch 99.6% Rejection Membranes

LG BW 4040 AFR Anti-Fouling Brackish Water RO Membrane

The LG BW 4040 AFR is a high-performance 4-inch reverse osmosis element specifically engineered for challenging brackish water and water reuse applications. Utilizing LG Chem’s innovative Thin Film Nanocomposite (TFN) technology, this membrane provides a combination of ultra-high salt rejection and enhanced fouling resistance. The "AFR" (Anti-Fouling/High Rejection) designation highlights its ability to maintain stable permeate flux and high water quality even when treating feedwater with high biological or organic fouling potential.

Designed with a robust fiberglass hard-shell exterior, the LG BW 4040 AFR is built for durability in demanding industrial and commercial environments. It features an active membrane area of 75.3 square feet and a high-permeability surface that delivers a permeate flow rate of 2,300 gallons per day. This element is an ideal solution for light industrial process water, boiler feed makeup, and wastewater reclamation projects where consistent, long-term reliability and reduced maintenance intervals are critical for operational efficiency.