EDR5RXD2 Direct replacement for obsolete 4396508P, 4392857, PS11722134, AP5984186. This 2-Pack Refrigerator Water Filter is used in Whirlpool®, KitchenAid®, and Maytag® side-by-side refrigerators with filter access in the base grille. Simply turn the Refrigerator Water Filter 1/4 turn to remove and replace. While retaining beneficial fluoride, this NSF® Certified Refrigerator Water Filter reduces chlorine taste and odor, particulates (class II), lead, and mercury. Replacing this Refrigerator Water Filter every 6 months ensures clean, safe drinking water.