EveryDrop by Whirlpool Refrigerator Water Filter 3 EDR3RXD1Z (Pack of 1) NSF certified and reduces 66 contaminants, including pharmaceuticals, waterborne parasites, lead, mercury, and pesticides Certified to fit these leading refrigerator brands: Whirlpool, MAYTAG, Kitchen Aid, JENN-AIR and Amana. Replaces Filter 4396841 Used in side-by-side refrigerators which accept Filter 3. Filter compartment is in the bottom left corner of the refrigerator Replace filter every 6 months or 200 gallons to maximize contaminant reduction Certified Genuine Part by Whirlpool Corporation This is a EveryDrop by Whirlpool Water replacement part Part Number EDR3RXD