Replacement water filters for Whirlpool refrigerators can be purchased from the Whirlpool Home Appliances website, which carries parts for the Whirlpool brands Maytag, KitchenAid, Amana, Jenn-Air and others. Lowe's, FrdgeFilters and eBay also sell replacement water filters.
Replacement water filters can be ordered based on the model number of the Whirlpool-brand refrigerator or by refrigerator type. The model number of the refrigerator can be found in different places, depending on the model. Information on how to locate the model number is available on the Whirlpool Home Appliances website. Whirlpool-brand water filters include those belonging to the EveryDrop Filters system, as of 2015.