The EverPure 7CB5-K water filter features KDF Media which inhibits microbial buildup. The Everpure 7CB5-K carbon block filter finely polishes water for high quality beverage and food applications. The Everpure 7CB5-K reduces chlorine taste and odor and other offensive contaminants that can adversely affect the taste of water and beverages. Reduces extra fine dirt and particles as small as 5 micron in size. The Everpure 7CB5-K sanitary cartridge replacement is simple, quick and clean. Internal filter parts are never exposed to handling or contamination. NSF Certified under NSF Standard 42.