For many years,Filmtec membranes by Dow have been considered to most reliable and consistent membranes in the reverse osmosis industry. Dow’s advanced manufacturing process and automated fabrication allows Dow to manufacture each element to tight,pre-defined specifications. Dow’s advanced and consistent RO element quality helps customers deliver systems that reliably provide low impurity drinking water. DOW FILMTEC elements are shipped dry for convenient handling and long shelf-life. Filmtec’s high flux rate delivers more water than other membranes.