Aluminum Garage Door Port, 4 in Vehicle Exhaust Hose, 1in Doors

Wrenching in the garage and need clean air? This aluminum garage door port gives your setup a proper pass‑through for a 4" vehicle exhaust hose. It’s a straightforward way to add a garage door exhaust port to your space so you can run or tune the car without filling the shop with fumes—perfect for anyone building a simple garage exhaust vent or tying into an existing garage ventilation system.

• Material: Aluminum
• Opening: 4" diameter
• For use on: 1" thick doors

Set it where you want the outlet, connect your 4" automotive exhaust hose or ducting, and you’re ready to route fumes outside. Great for enthusiasts planning a garage exhaust fan upgrade, a garage vent system, or any garage ventilation project that needs a clean, durable exhaust port on the door.

Fit note: Measure before you cut—this port is designed specifically for 1" thick doors and 4" hose routing. Ideal for garage exhaust ventilation, garage door vents, and exhaust port garage door installs.