Membrane Softening

Dow offers FILMTECTM  nanofiltration elements for use as an alternative to lime softening of public drinking water supplies. Membrane softening reduces hardness and removes organics, color, bacteria, and other impurities from raw water.

For more information about FILMTEC elements for municipal softening applications, contact your local Dow representative.

Product Description Element Size Flow Stabilized Rejection
Diameter inches (mm) Length
inches
(mm)
Active
Surface
Area
ft2 (m2)
gpd
(m3/d)
%
FILMTEC NF270-400 Nanofiltration element. 7.9 (201) 40 (1016) 400 (37)


®™* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow