4" ID cast aluminum garage door port. For use with 3" ID exhaust hose.

 

Features

• 4" ID Cast Aluminum.
• Fits Insulated Garage Doors.
• For use with 3" ID Exhaust Hose.

 

Technical

Dimensions (L x W x H)	5 x 5 x 5	inch
Weight approx.	2	lbs