Everpure EV9618-21 7CB5-S Filter Cartridge Reduces chlorine taste and odor and other offensive contaminants that can adversely affect the taste of water and beverages Sanitary cartridge replacement is simple, quick and clean. Internal filter parts are never exposed to handling or contamination Reduces limescale build-up that can cause excessive machine downtime and increased maintenance costs NSF Certified under NSF/ANSI Standard 42