Membrane Filter is the molecular or biological filter, composed of biologically inert cellulose esters. It possesses a uniform or predetermined pore size, which traps the different types of microorganisms whose size ranges. The filters act as a barrier to separate contaminants from water, or they remove the particles contaminating the water. Reverse osmosis, ultrafiltration, and nanofiltration all use a membrane in their different filtration processes. The offered Membrane Filter is constructed out of a wide range of synthetic materials, including cellulose acetate, cellulose nitrate collodion, polyamide nylon, polycarbonate, polypropylene, and polytetrafluoroethylene.