Omnipure Q Series Reverse Osmosis Membrane Filter Replacement Cartridge 10 Inch WL5572

A reverse osmosis membrane is a thin film with tiny pores that allow water molecules to pass through while blocking larger contaminants. It is made of a semi-permeable material that only permits the passage of water and not dissolved salts, organics, bacteria, or pyrogens. When a pressure greater than the naturally occurring osmotic pressure is applied to the concentrated solution side, pure water diffuses through the membrane, leaving contaminants behind. The water permeating the membrane is called the permeate flow and becomes purer as it passes through the membrane’s dense barrier. Reverse osmosis removes up to 99% of contaminants to produce purified water.