QR Code Link to This Post Flettner TCX-2 (compact version) wind powered vent for van or trailer. Removes excess heat , fumes etc. Only used 1 month on my van. My van is a small compact van and vent is strong. My panels were vibrating too much for me. Not recommended for smaller vans. Use for RVs, trailers( horse , motorcycle, aviation ) and larger vans( sprinters etc.)to remove any toxic fumes. Works perfect. Can watch tutorial on youtube how to install. Easy to install and take apart. This vent is in perfect working condition. $120