TW30-4040 Dow FilmTec 2,400 GPD at 225 PSI 4 x 40 inch 99.5% Rejection Tap Water Membranes

Dow FilmTec TW30-4040 Tap Water RO Membrane (2,400 GPD)

The FilmTec TW30-4040 is a highly reliable 4-inch reverse osmosis element specifically optimized for treating tap water in commercial and light industrial systems. It is the industry standard for applications that require a balance between high permeate quality and robust operational life. Primarily used for drinking water systems, medical labs, and small-scale food production, this membrane is designed to handle the variable water chemistry often found in municipal tap water supplies while maintaining consistent output.

Built with a polyamide thin-film composite membrane and a durable fiberglass hard-shell exterior, the TW30-4040 is engineered to provide stable performance over long-term use. Its spiral-wound design ensures efficient water flow and salt rejection, making it a dependable choice for system designers. With a nominal salt rejection of 99.5% and a permeate flow rate of 2,400 gallons per day, this element delivers high-purity water at standard tap water pressures, ensuring a cost-effective solution for diverse water purification needs.