Fits select Kenmore side-by-side and bottom-freezer refrigerators. For compatible models, please read the picture 2 carefully. | Certified to reduces 23 contaminants, including pharmaceuticals, waterborne parasites, lead, mercury, and pesticides (NSF 401, 53 and 42 certified). | Twist and lock designed! It is quick and easy to replace the filter by just taking several seconds without leaks. | Same great quality and a fraction of the price! Save big without compromising quality. | Replace every 6 months/200 gallons, or more often if water flows noticeably.