• Thin wall horizontal transition; 4-1/2" x 18-1/2" to 10" round.

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" to 10" round horizontal discharge transition is made to fit fan and hood outlets that must fit to 10" round ducting
• Transition is made of 26 gauge galvanized steel construction for durability and long life
• Sold as 1 to a carton