4" Latching Aluminum Exhaust Port- 1/4" Door Thickness

4" Aluminum Garage Door Exhaust Port- 1/4" Door

Durable Aluminum Construction
4" Inside Diameter for Exhaust Hose
1/4" Barrel Projection for up to 1/4" Thick Sections
Latching Cover To Prevent Exposure To Weather & Pests
Back Plate & Mounting Hardware included
Great for up to 1/4" Thick Non-Insulated Doors!