Basic Water Treatment. Standard Replacement Filter Cartridge. Tested and Certified Under Industry Standards. For Tap Water. 2X Filter Life. Change Filter Regularly. 3 Filters. Standard. Barrier filter cartridges for pitchers treat water from many contaminants such as aesthetic chlorine, lindane, copper, mercury and cadmium making it safer while reducing bad odor and taste. Barrier - guarding your health. Tap 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. Chlorine and organochlorine contaminants may increase the risk of cardiovascular and allergic diseases. Ions of heavy metals block the membranes of the cell walls and do not allow them to function normally. The Barrier Standard replacement filter cartridge treats water reducing contaminants such as aesthetic chlorine, lindane, copper, mercury and cadmium making it safer and healthier for drinking while reducing bad odor and taste. NanoPlus Unique absorbent surface. Thanks 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. USICT. The 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. Replacement Filter Cartridge Life. Replacement filter 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. Replacement Filter Cartridge Compatibility. The enclosed replacement filter cartridge fits all models of Barrier pitchers. It 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.