Frigidaire ®* WFCB / RC-200 ® Compatible WFO Replacement Refrigerator Water Filter and Ice Maker Water Filter. PureSourcePlus Water Filters Pre-2001 Energy Efficient - Used on all units prior to April 2001 production. Also the replacement water filter for the RC-200. The PureSourcePlus WFCB "Enhanced" ice and water replacement filter cartridge provides you with clean, fresh-tasting ice and water, glass after glass. Now you can start your day with fresh, clean water from your refrigerator. No chlorine taste! No unpleasant odors! PureSource® water filters give you clean, refreshing water. This replacement water filter has been strenuously tested and certified by NSF International. It protects your family by reducing all of the following contaminants: Cysts by 99.99% Particulates (class 1) by 99.80% Turbidity by 99.70% Lead by 99.30% Chlorine (class 1) by 97.80% 2,4-D a common herbicide, by 94.20%, and Atrazine by 94.90% Toxaphene, a common pesticide by 87.50% Fits all Frigidaire filter-equipped refrigerator models manufactured before 2001 energy compliant regulations were enacted. Filter should be changed every 6 months or 250 gallons, which ever comes first. .375 GPM flow rate. The Frigidaire Pure Source Plus refrigerator water filter cartridge will replace any of the following part numbers: RC101, RC200, RF200, RC-101, RC-200, RF-200 Frigidaire 218710901, 218710902, 218732306, 218904501, 218904602, 218907800, WFCB Frigidaire 5303917752, 5303917937, 5303918017 Kenmore 9906, 469906, 46-9906 Sears 04609906000 Kenmore refrigerators manufactured by Frigidaire (refrigerator model numbers beggining with #253). The WFCB Filter Replaces: Frigidaire 5303917752, 218904501 Kenmore: 46-9906 RC-101, RC-200, RF-200. RF-10 RG-10 NGRG-2000 FRS23KR4A FRS23R3A FRS26R3A FRS23R4A FRS26KR4A FRS26R4A MRSR25V4A MRSR25X8A MRSR25V5A MRSZ28X8A and also replaces Kenmore part number 46-9910. Frigidaire recommends that you replace the filter every 9 months OR if the refrigerator has not been used for more than two weeks (for instance, during a move) OR if you notice a decrease in the flow of water or objectionable tastes in the water or ice.