Broan 428 Vertical Elbow Transition for Range Hoods and Bath Ventilation Fans, 3-1/4 x 10-Inch 3.25 in. x 10 in. vertical discharge transition is made for fan and hood installations; Weight 1.50; Color 0; Operating System; Batteries Included; Batteries Required; Number of Batteries 0; Battery Type N/A; Language English; Assembly Required Transition is made of 30 gauge galvanized steel construction for durability and long life Height 5.560 Width 10.000 Depth 5.560