Everpure EV9324-01 Insurice Single i2000 2 System New and improved Micro-Pure II media inhibits the growth of bacteria Reduces chlorine taste and odor and other offensive contaminants Precoat submicron technology reduces dirt and particles as small as 1/2 micron in size Sanitary cartridge replacement is simple, quick and clean. Internal filter parts are never exposed to handling or contamination NSF Certified under NSF/ANSI Standards 42 and 53