The Fridigaire PureSource Ultra Refrigerator Filter ULTRAWF replaces filters found in Frigidaire Pure Source Ultra Refrigerators with top mounted cylindrical filter housing. In addition, it will also replace Part Numbers 242017800 and A0094E28261. Removes these contaminants: Chlorine, Particulates (Class 1), Lead, Cysts, Turbidity, Atrazine, 2,4-D, Endrin, Toxaphene, Mercury, Lindane, Alachlor, Benzene, P-Dichlorobenzene, O-Dichlorobenzene, Ethylbenzene, Chlorobenzene, Monochlorobenzene, Styrene, Tetrachloroethylene, TTHM, Carbofuran, Asbestos, 2,4,5-TP, and 1,2,4 Trichlorobenzene.