The Everpure EV9617-11 4CB5 Carbon Block Filter EV961711 reduces dirt and other particles as small as 5 microns from your water in addition to reducing the taste and odor of chlorine. This cartridge can deliver clean better tasting water to many foodservice vending and office coffee service applications. The cartridge will not remove fluoride from water. The 4CB5 is also used with Everpure QL2 QL3 and QC71 filter heads as well as Everpure MRS-20 Reverse Osmosis System. The internal filter is never exposed to handling and thus is not easily contaminated. This cartridge should be changed every six months for optimum performance. Item Weight ‎2 pounds Product Dimensions ‎15 x 3 x 3 inches