Carbon Block Water Filter, Chlorine Chemical and Sediment Removal, KleenWater Brand Under Sink Replacement Cartridge, Set of 6 Six KleenWater solid carbon block under sink water filter cartridges Removes chlorine, chemicals, sulfur, dirt, rust and sediment 2.5 x 9.75 inch NSF rated cartridge Provides "bottled quality water" at your kitchen sink 5 micron filtration