Activated Carbon Filter for Inline Duct Booster Fan 1.Dia 100-315mm, Length:300-1250mm 2. ... Carbon layer thickness: 35mm,50mm Activated Carbon Filter for Inline Duct Booster Fan *Carbon layer thickness: 35mm, 50mm*Color available: Black ... , Carbon filter, Light reflector, Electronic Ballast, Heavy duty hanger, Flexible duct... Rope Ratchet Filter Hanger Activated Carbon Filter for Inline ...