Horizontal Right Transition Broan 454
This Broan 454 Horizontal Right Transition 4 1/2 inch x 18 1/2 inch to 10 inches round. This Horizontal Right Transition is easy to install when the instructions are followed correctly. This Horizontal Right Transition corresponds with other parts like wall caps, air duct, and elbows. This Horizontal Right Transition is convenient to the other parts.