➯Mushroom shaped roof vent exhaust fan, not only can the fresh air into the car, but also prevents odors and gasses from invading RV living space. 45mm-140mm (1.8"-5.5"); Product Overall Size: Approx.
eBay
6x4ft Lean To Wall Polycarbonate Greenhouse Aluminium Walk in Garden Adjustable Roof Vent Rain Gutter Sliding Door Clear
Aliexpress UK
Usage: Install and fix and start working. Positive pole of the fan connected to the middle tripod of the switch. 1 x Air Outlet. Built‑in copper motor with thermal protection, it can work continuously without maintenance.
eBay
Outsunny 3 x 4m Gazebo Canopy Replacement Covers, Garden Gazebo Roof Replacement with Vents and Drain Holes, TOP COVER ONLY
Aliexpress UK
AVT Solar Powered Air VAN / TRUCK / TRAILER ROOF VENT Warm Air Extractor Our new ultra low profile aerodynamic extraction unit is ultra quiet, will work in low light, and extract 5cu.M per minute. Featuring a large efficient solar panel that does not need intense direct sunlight to operate. 200 mm Diameter, and ONLY 25 mm HIGH - ULTRA LOW PROFILE to fit under any roof rack.
eBay
Use For: This RV roof vent cover(Size: 14 3/4"x 14 3/4") fits a standard 14" vent, compatible with Ventline roof vents prior to 2008 and Elixir roof vents starting 1994;. Good Quality: High-density and impact-resistant UV-resistant polyethene RV roof vent covers material will not break apart due to sun exposure; stainless steel rust-resistant accessories hardware for long-lasting use;.
eBay
Introducing a sleek and efficient wind-driven vent for your vehicle. This item is perfect for pet owners or anyone in need of better air circulation in their van or pickup. The vent is black and low-profile, making it a stylish addition to your vehicle.
eBay
The RV roof vent is made of durable plastic material, UV-resistant and waterproof. This RV roof ventilation fan provides good air circulation for RVs, trailers, campers and other vehicles, helping to reduce indoor temperature and eliminate odors from food, smoke, waste, pets, etc.
eBay
Usage: Install fix and start working. The positive pole of the fan is connected to the middle tripod of the switch. 1 x Air Outlet. Built‑in copper motor with thermal protection, it can work continuously without maintenance.
eBay
Use For: This RV roof vent cover(Size: 14 3/4"x 14 3/4") fits a standard 14" vent, compatable with Ventline roof vents prior to 2008 and Elixir roof vents starting 1994;. Good Quality: High-density and impact resistant UV-resistant polyethylene RV roof vent covers material will not broken apart due to sun exposure; stainless steel rusresistant accessories hardware for long-lasting use;.
eBay