The Frigidaire/Electrolux WF1CB 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 WF1CB Replacement Refrigerator Filter, you will be provided with up to 100 gallons of drinking water. It reduces 96.50% of Chlorine Class I and 98.30% of Particulates Class III as well as the taste and odor of chlorine and sediments. It fits perfectly into many refrigerator models like FRS26KR4A, FRS26R4A, FRS23KR4A, MRSR25V5A, FRS23R4A, FRS23R3A, FRS26R3A, and MRSZ28X8A. Some other water filters showing good compatibility with this model include the WF1CB, SWF1CB, RG-100, RF100, and NGRG 2000. It is tested and certified by NSF International to NSF/ANSI Standard 42.