Powermaxx GLFANXIF8CF8AD32C 8-Inch Inline Fan with Australia Virgin Charcoal Filter and 32-Feet Ducting Combo 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 25ft Uninsulated Aluminum Ducting with Pair of Clamps Cotton pre-filter included Odor control for better privacy