The 3MFF101, 5613432 3M Under Sink Full Flow Water Filter Replacement Cartridge is built for the 3M Aqua-Pure Full Flow water filtration system, the 3MFFF101 3M Aqua-Pure water filter helps improve the taste of your drinking water, while filtering out some of the nastier impurities. In-line water filtration systems are great solutions when a refrigerator does not have a pre-existing water filter. For up to one full year, this cartridge will reduce lead, sediment, VOCs and cysts before these contaminants have a chance to pour into your glass. Installs quickly and easily with a simple twist. Ensure your 3M Aqua-Pure filtration system continues to perform to its peak abilities by ordering the replacement 3MFFF101 water filter cartridge you need from us today.