Broan 423 10" Round to Rectangular Transition for Range Hoods and Bath Ventilation Fans

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 vertical 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