Air Duct Broan 410
This Broan Air Duct is 10 inches round. This Air Duct is 2 feet galvanized steel and replaced by model 899. This Air Duct can connect with other wall caps and transitions. Broan 472 Transition converts the 10 inch Air Duct into and 8 inch. This Air Duct is easy to install and to work with.