This Model 423 Broan 4-1/2 in. x 18-1/2 in. to 10 in. Round Galvanized Steel Vertical Duct Transition provides a compact bridge between 2 ducts. It makes it easy to integrate your ductwork. It is made from 26-gauge galvanized steel for a long life.
- Compatible with most 4-1/2 in. x 18-1/2 in. ducts and 10 in. round ducts
- Provides a bridge between a 4-1/2 in. x 18-1/2 in. duct and 10 in. round duct
- 26-gauge galvanized steel construction for longevity
- Designed for indoor venting and ductwork