The Frigidaire/Electrolux WFCB Replacement Refrigerator Filter is a great way to keep your refrigerator working in a good condition. This refrigerator filter needs replacement every nine months as old refrigerator filter cartridges can induce a smell and bad taste in drinking water. Older cartridges might leak contaminants and bacteria in the water, making it unfit for drinking. With Frigidaire/Electrolux WFCB Replacement Refrigerator Filter, you will be provided with up to 400 gallons of clean, treated water. It operates at a pressure of 30 psi to 100 psi, at a temperature range of 33 degrees to 100 degrees Fahrenheit. It measures 4-1/8 inches in length x 1-7/8 inches in diameter. It fits well into Frigidaire and Kenmore refrigerators made before April 2001, where the filter is inside a round plastic housing. There are other water filters compatible with this model, such as RF200, WFCB, SWFCB, RC101, RC200, RC-101, RC-200, and RF-200.