The Refrigerator Water Filter is an OEM part for Whirlpool refrigerators. It delivers clean, filtered drinking water and ice by effectively reducing contaminants, including chlorine taste and odor, particulates, and various other harmful substances that may be present in the water supply. Causes of a bad Refrigerator Water Filter can include regular wear and tear over time leading to reduced efficacy in filtering out contaminants, as well as accumulation of contaminants and sediment. Symptoms of a bad Refrigerator Water Filter include: Noticeable decrease in water flow rate. Unpleasant taste or odor in the water or ice. Discoloration of water or ice. This OEM Whirlpool part is also compatible with Maytag, KitchenAid, Jenn-Air, Amana, Magic Chef, Admiral, Norge, Roper and some Kenmore models.F2WC9I1 (AP5801390) replaces 3019657, FILTER9, PS8759230, W10480323, W10565350.