Everpure EV9619-01 OW200L Cartridge, Pack of 1 Everpure's unique filter blend using activated carbon reduces chlorine taste, odor and other contaminants Precoat submicron technology reduces dirt and particles as small as 1/2 micron in size. Reduces lead to below the Federal Action Level of 15 ppb Reduces possible health contaminants such as asbestos fibers and Cryptosporidium and Giardia cysts. NSF Certified under 42 nad 53 Sanitary cartridge replacement is simple, quick and clean