Maximize the air and sound performance of your Broan ventilation fan or range hood using one of our wide variety of ducting accessories.
4-1/2 x 18-1/2 in to 10 in round vertical discharge transition is made to fit fan and hood outlets that must fit to 10 in round ducting|Transition is made of 26 ga galvanized steel construction for durability and long life
Broan Duct Transition, 4-1/2 x 18-1/2 to 10 in Size, 18 in Length, 11-1/4 in Width, 4-1/2 in Depth, 26 ga Gauge, For Use With: Range Hood and Bath Ventilation Fan, Steel, Hot Dipped Galvanized, Domestic/Import: Domestic