Replacement filter for the Galaxi filter kit. Designed to last 1,250 gallons or approximately six months. Unique filter design combines activated carbon with a cellulose-free synthetic fiber matrix. Performs as a sediment filter and a carbon block in a single cartridge. Dramatically improves chlorine taste and odor reduction. Reduced blocking improves dirt-holding capacity. Prevents carbon fines from being released into the water stream. Reduces lead. Reduces cysts. Recommended to be used with Oasis brand point of use (plumbed) water coolers.