1.carbon block cartridge 2.plastic holusing 3.size:10" 1.carbon block cartridge2. ... coal carbon, shell carbon, coconut shell carbon, silver carbon cut and so on, can remove chlorine, organic matter, bad taste, odor ... .Filter pore size: 1mic, 5mic, 10mic.Length: 10".Category: Coal toner, cartridge shell, coconut shell carbon, cut Silver activated carbon and so on.