... chlorine, peculiar smell, color, organic objects, etc . characteristics: SFT active carbon filter cartridge has a real deep-level filtering struture ... while the filter cartridge is in operation. Because the active carbon filter cartridges do not separate out fibers and other ... : 30mm length: 5'', 10'', 20'', 30'', 40'' Application: The active carbon filter cartridge can be used for the purification of ...