Designed to fit most standard faucets with a removable aerator. Installs in just minutes without any tools. Enjoy Propurified water by just turning on your faucet and diverter valve. With ProMax Water Filter Technology, reduce/remove a broad range of over 200 contaminants including VOC’s, lead, fluoride, heavy metals, pesticides, SVC’s, disinfectants, inorganic non-metallics, herbicides, pharmaceuticals, PFOA, PFOS and micro-organisms. Tested to NSF-42 and 53 standards. See ProMax Lab Report for details.