Barrier Water Filters - Water Pitcher Filter Replacement - 3 Pack Barrier Water Filters Water Pitcher Filter Replacement fits all models of Barrier pitchers. Barrier Water Filters Water Pitcher Filter Replacement is intended only for the treatment of tap water for drinking purposes from organic and inorganic contaminants such as aesthetic chlorine, lindane, copper, mercury and cadmium, while reducing bad odor and improving taste. Barrier Water Filters Water Pitcher Filter Replacement cartridge life is 80 gallons. Actual volume may vary based upon local water quality (volume is base on Water Quality Association test results using NSF/ANSI 42 & 53 standards). Barrier recommends changing the replacement filter cartridge every 2 months. Regular replacement of the filter guarantees that you will always have great tasting healthier water. NanoPlus Unique absorbent surfaceThanks to the unique NanoPlus absorbent surface which consists of billions of nanopores, Barrier replacement filter cartridges are able to absorb considerable quantities of the finest molecules of harmful contaminants including aesthetic chlorine, lindane and dissolved heavy metals such as copper, mercury and cadmium. USICTThe high quality coconut activated carbon coupled with our Unique Silver Impregnated Carbon Technology filters aesthetic chlorine and lindane as well as ions of heavy metals such as copper, mercury and cadmium while reducing bad odor and taste. The treatment of silver with the activated carbon reduces the possibility of bacterial reproduction within the filter cartridge itself. Guarding Your HealthTap water contains many contaminants invisible to the naked eye. These contaminants include chlorine, ions of dissolved heavy metals, nitrates, pesticides and many others. Drinking water with these contaminants over a prolonged period of time may present many health risks.