Culligan FM-R3 Replacement Filter Cartridge for Faucet Mount Filter FM-100-C and FM-100-W (3 - Pack) FM-R replacement filter cartridge reduces atrazine, chlorine, lindane, lead, particulates class I, turbidity while removing bad taste and order Each FM-R filter cartridge filters for a full 200 gallons or 2 months for fresher, cleaner drinking water Tested and certified by WQA Enjoy clean, fresh tasting water directly from the faucet Filter cartridge is easy-to-install, no tools required Replacement filter Cartridge for FM-100-C and FM-100-W Culligan Faucet Mount Filter Includes: 3 FM-R filters