UltraEaseâ¢ Filter Replacement. Change filter in seconds with just a quarter turn â no hassles, no mess, no need to turn off your water supply. A 6-month filter life means you only have to replace filters twice a year. Alachlor, Atrazine, Benzene, Carbofuran, Carbon Tetrachloride, Chlorine Taste and Odor, Chlorobenzene, Chloroform, Chloropicrin, Cyst, 2,4-D, Dibromochloropropane (DBCP)