CCBC-10 Pentek Undersink Filter Replacement CartridgeThe PENTEK CCBC 10 uses a coconut carbon filer media that yields a higher capacity for chlorine taste and odor reduction and extends the useful life of the cartridge. The Endurawrap pre filter helps trap sediment and helps prevent the carbon block cartridge from becoming plugged. The CCBC 10 is an ideal choice as a high capacity polishing filter for a wide range of residential, food service, commercial and industrial applications.