Broan 441 Wall Cap (Aluminum) 10 In. Wall Cap for Range Hoods and Bath Ventilation Fans; Includes gravity dampers, aluminum louvers and a bird screen to help protect your ductwork; Height 13.000; Width 13.000; Depth 1.340; Weight 4.00; Color 0; Operating System; Batteries Included; Batteries Required; Number of Batteries 0; Battery Type N/A; Language English; Assembly Required Wall cap has 13 in. square mounting collar and is 2.25 in. deep from front to back Round fitting ensures a proper fit to ductwork and operates using gravity Equipped with a bird screen to keep nests and small animals on the outside Wall cap connections are made of 24 gauge CRCQ galvanized steel construction for durability and long life