Actived Carbon Cartridge 1 adsorption halogen, oils, color, and odor of metal impurity, 2. Remove impurities particle Actived Carbon Cartridge1 adsorption halogen, oils, color, and odor of metal impurity, 2. Remove impurities particle Model:HD-CTO01Name:20" Big Block Activated CarbonLength(mm): 508Outer Diameter(mm):113Inter Diameter(mm): 28Packing:6pcs /35 x25 x53cmThe MOQ :500pcs