This replacement filter cartridge quickly twists in and out with a quarter turn, making it easy to replace. Replaces K-201 and K-202 filters Single-stage filtration and absorption system. Filter reduces particulates, sediment/rust, turbidity, cysts, chlorine taste/odor, and lead. Cartridge filter can be twisted in and out for easy replacement. Replace filter media every 1389 Gallons (5258 L) or six months 1.39 gallons per minute (5.26 liters per minute) maximum flow rate at 60 PSI For use in Models K-200, K-6665-F, and K-6666-F Meets NSF International standards.