Powermaxx 8-inch Australia Virgin Charcoal Filter and Inline Fan Combo &hellip; (32 Ft Ducting) 1- Powermaxx 8" Inline Fan: Air Flow - 720 CFM 1- Powermaxx 8" Carbon Filter: Dimension - 8" x 12" x 20" Duct Size - 8" 1- 8" by 32ft Uninsulated Aluminum Ducting with Pair of Clamps Premium quality activated carbon - Cotton pre-filter included Long lasting odor control