Swecatch 6-Stage Home Cartridge Ceramic Faucet Tap Water Filter (White) Remove rust and residual chlorine efficiently,bring you visible clearance. Clever space-saving design Install easily in minutes on standard faucets ( will not work with pull-out faucets), and the ceramic filter element is also easy to replace. Conveniently provides up to 6-8 months/ 530 gallons filtered water at the flip of a switch. Nano-KDF remove residual chlorine & heavy metals & inhibit the growth of bacteria. Can be used repeatedly by brushing without recontamination, With rotating tangential water inflow design, cant be block easily.