Ecosoft - DOW Filmtec CSV-1812-50 Membrane Element INSTALLATION & USE Replacement DOW Filmtec CSV-1812-50 Membrane Element for use with all 1812 Membrane Housings TECHNICAL DETAILS Membrane type: Polyamide thin-film composite Permeate volume: 50GPD Stabilized salt rejection:  97.0% Minimum salt rejection:  96.0% Purpose: Domestic High quality film with sheets Made in USA by DOW on behalf of ECOSOFT.The membrane has a production capacity of 50GPD (190lt per day) with a pore size of 0.0001micron.Reverse osmosis membranes remove more than 97% of all salts, heavy metals (arsenic, nitrates, hexavalent chromium, lead, etc.), bacteria (E.coli, Salmonella, etc.), viruses ( Hepatitis A-HAV, Poliomyelitis viruses, Intestinal viruses, etc.), Parasites (Giardia lamblia, Cryptosporidium, etc.), VOCs (Organic and volatile compounds)The life of the membrane ranges from 2 to 3 years (depending on the water in each area).The film is compatible with all 1812 film casesProduct diameter 1.8" (45mm);P