The FFFD-312-1 replacement filter for WF3CB is designed to fit all Frigidaire® refrigerators using the WF3CB filter and PureSource3 filters. Located at the top right of the fresh food compartment and is a push/push style filter. Tested to meet NSF/ANSI 42&52 standards to ensure that you are getting a safe, quality product. FridgeFilterz provides you and your family with clean, fresh tasting, odour free ice and water. Manufactured to the highest quality standard with environmentally friendly carbon, they are designed remove Cysts, Lead, Turbidity, Mercury, Toxaphene, P-Dichlorobenzene, Atrazine, 2 4-D, Benzen, Chlorine and Particulate Class I, through the highest level particulate filtration. The carbon filter keeps all the beneficial minerals that are present in your water including fluoride if it has been added to your drinking water. For optimal performance change your filter every 6 months. Filter dimensions: 2.31 x 2.31 x 9.25 in.