Designed for maximum airflow Energy efficient Weighted damper prevents back-draft 100% Gasket seal provides quiet efficient operation Ideal for bath fan, range hood and dryer venting Color/Finish Family: White Manufacturer Color/Finish: White Type: R2 exhaust Duct Diameter (Inches): 4.0 Duct Length (Inches): 11.5 Hood Height (Inches): 7.75 Assembled: Yes Duct Material: Aluminum Hood Material: Galvanized steel Hood Width (Inches): 7.0 Warranty: 1-year limited CA Residents: Prop 65 Warning(s): No UNSPSC: 52141600