FILMTEC Nanofiltration Elements Offer Solutions for Solute-Specific Separations Including Softening, Pesticide and Organic Removal In every application, with every customer, FilmTec seeks to offer the optimum balance of quality performance, reliability, and cost. And with the unique capability of FilmTec’s nanofiltration (NF) membranes we enable you to customize the water composition you require as well. FILMTEC™ nanofiltration membranes have a pore size in the order of nanometers (10 angstroms). Nanofiltration membranes typically operate at less than 100 psi (7 bars). FilmTec offers a portfolio of nanofiltration membranes that can remove organics with molecular weights greater than 200 (e.g. Total Organic Carbon (TOC) and disinfection by-products) while allowing varying amounts of salt and hardness passage. NF200 Medium to high salt passage, medium calcium passage (50-65%), high atrazine rejection (95%), NF270 High salt passage, medium calcium passage (40-60%), high TOC removal. NF90 High salt removal (90%), high iron removal, pesticide, herbicide removal, and TOC removal.