Broan Nutone F402404 24 Inch Range Hood Is A Two-Speed 4-Way Convertible Range Hood Four-Way Convertible; This Range Hood Installs Ducted 3-1/4" X 10" (Vertical and Horizontal), 7" Round (Vertical) and Non-Ducted 160 CFM, 6.5 Sone (3-1/4" X 10" Discharge) or 190 CFM (7" Round Discharge) Performance HVI 2100 Certified Dishwasher-Safe Aluminum Grease Filter Includes 3-1/4" X 10" Damper/Adapter And 7" Round Adapter