DOW FILMTEC NANOFILTRATION MEMBRANES are designed to eliminate large amounts of total organic carbons (TOC), which include THM precursors, pesticides, and herbicides through a high area and maximum productivity. These NF membranes provide medium to high salt passage and medium hardness passage.

Nanofiltration membranes come in three different sizes (2.5", 4", and 8"), with each being specifically ideal for various applications. The most common utilizations for these membranes are groundwater and surface water, where the removal of organics is done through partial softening in order to ensure a degree of hardness and water quality. 

The high active area membrane coupled with low net membrane driving pressure permits these impurities to be extracted at low operating pressure.