The Replacement Brand RB-W1 Refrigerator Filter (4396508 Compatible) protects the refrigerator and ice maker. This cartridge is environmentally friendly as it serves as an alternative to carbon-based filters that release greenhouse gases. It is manufactured with the dried carbonized coconut shell while converting the emissions into thermal energy. The cartridge has a flow rate of 0.5 Gallons per Minute. The pressure range is 20-100 psi. The operating temperature is 33-100 F. The cartridge should be replaced every 6 months. The capacity is 300 gallons. It removes the taste and odor of chlorine, mercury, lead, cysts, asbestos, turbidity, rust, dirt, and Taxophene. It is compatible with refrigerator brands like Whirlpool, KitchenAid, Kenmore, Sears, and Swift.