The Culligan IC-750 Drinking Water Filter reduces chlorine taste/odor, lead, sediment, atrazine, mercury, copper, zinc and more. Replace the cartridge every 12 months with no messy hassle, fittings or buckets—just twist off the old one and twist on the new one. The filter features a 1/4" inlet/outlet and includes mounting screws, fittings, installation instructions and a 750R cartridge.