Everydrop by Whirlpool Refrigerator Water Filter 6 EDR6D1Z (Pack of 1) NSF Certified to Reduce 9 contaminants, including lead and mercury, pesticides and industrial chemicals Certified to fit these leading refrigerator brands: Whirlpool, MAYTAG, Kitchen Aid, JENN-AIR and Amana. Replaces Filter 4396701 Used in bottom freezer and side-by-side refrigerators which accept Filter 6 Replace filter every 6 months or 240 gallons to maximize contaminant reduction Certified Genuine Part by Whirlpool Corporation This is a EveryDrop by Whirlpool Water replacement part Part Number EDR6D