Everydrop Filter 3 is the only filter approved by: Whirlpool Maytag Amana KitchenAid and Jenn Air brands. Certified to reduce 99% of lead as well as other potentially harmful contaminants everydrop® filters offer convenient filtered water for you and your family. Reduces 73 contaminants including lead pesticides pharmaceuticals and waterborne parasites (NSF 401 53 and 42 certified). For the cleanest water replace your everydrop® filter every six months (or 250 gallons). everydrop® Ice and Water Refrigerator Filter 3 replaces P1AC416 and P1AC250.