Select 2203220 Kenmore, KitchenAid, Thermador and Whirlpool Compatible Refrigerator Water Filter by BYP-Select. $26.86. The Select Replacement Refridgerator Water Filter replaces the Whirlpool 4396508 and 4396510. Filters Class I particulates down to 0.52 microns. Retains flouride in drinking water for good health. Reduces bad taste, odors, sediment, and more. Needs to be replaced every 3 to 6 months depending on water quality and usage.