From the manufacturer this PUR Fast-Fill Refrigerator Water Filter is used in Whirlpool and KitchenAid Fast-Fill side-by-side to filter access to the basic network. Simply press the release button to remove and replace the refrigerator water filter. While retaining beneficial fluoride, this NSF Certified Refrigerator Water Filter reduces chlorine taste and odor, particulates (class I), lead and mercury. Replacement of this refrigerator water filter every 6 months ensures safe drinking water. Button quick noncyst grid filling water filter for fridge Whirlpool, Maytag, Amana, Estate, Roper, Kitchen Aid, Jenn Air side by side refrigerator model.