Kenmore water filter 9081 has NSF 42, 53 and 401 certifications. It reduces lead and other metals; chlorine taste and odor; volatile organic compounds (VOCs); and some pesticides and pharmaceuticals. Water filter 9081 is for select Kenmore side-by-side, bottom-freezer and top-freezer refrigerators. Replace every 6 months, or more often if water flow slows noticeably. Previous part numbers: 9930.