Water Sentinel WSF-1 Refrigerator Water Filter Provides clean, clear water that looks and tastes great! Compatible Replacement Filter for the following: Frigidaire models RF100, RG100, NGRG2000, RF-100, RG-100, NGRG-100, NGRG-2000, 218994101, 21817805, 204389101, WFCB, WF1CB; Kenmore models 9910, 469910, 46-9910, 9910P, 04609910000, RC-200, RC101, 09998, and 9906. Removes Chlorine, Tastes and Odors present in your drinking water. Will not remove minerals that are beneficial to health. Includes an accompanying tube of special o-ring lubricant which ensures a leak-free seal! Designed to last up to six months or 300 gallons. *Should not be used with water that is micro-biologically unsafe or of unknown quality, without adequate disinfection. AirFilters.com The Water Sentinel Refrigerator Water Filter contains a compressed carbon block that provides tremendous capacity for removal and/or reduction of impurities and sediment that present in your drinking water. The carbon block features millions of active sites on its surface and within the structure which can absorb impurities like a sponge, and can adsorb and hold other types of impurities on its surface like a magnet. Additionally, this filter can catalytically breakdown other impurities similarly to the way a catalytic converter works in your vehicle. These processes ensure the cleanest and best tasting water possible. This economical filter replacement will provide you with fresh and clean tasting water and ice cubes. Purchase one today!