We offer multiple replacements for the WF1CB refrigerator water filter. These filters fit a number of refrigerators made by Frigidaire, Kenmore, and other brands. The WF1CB filter model is used in all PureSource fridges that have been manufactured since April 2001. The Frigidaire PureSource refrigerator water filter is the factory original filter made with OEM parts. We also offer an aftermarket option, the Supco WF284. This filter is comparable to the OEM at reducing contaminants and impurities from your water supply. Both of the filters are meant to be changed once every six months. We recommend the aftermarket Supco WF284 replacement due to its affordable price and high quality water filtration. Each filter should be changed as recommended or when water flow rate and taste quality decreases to ensure the best filtration possible.