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Cargo trailer roof vent installation.
Just installing a rood vent in the enclosed trailer to keep it cool while working.
Easy to use hand knob on vent housing allows you to lift and lower dome.
Thermostat controlled roof vent uses a variable speed reversible 12 volt fan to push stale air out of and pull fresh air into your rv camper or enclosed trailer.
Most likely we have what you are looking for but you will need to first determine what vent you have on your trailer.
Most standard vents are 14 1 4 by 14 1 4 inches wide 14 x 14 inches wide or 13 x 14 inches wide.
The best way to find the correct replacement vent cover for your cargo trailer is to measure the vent.
Bob livingston and bill gehr replace a weathered rv roof vent cover.
What you could do for maximum air flow in your trailer is have a set facing forward in the front of your trailer near the bottom of the side wall and then have another set facing rearward at the top back of the trailer.