Feature:1. Sturdy Material: Built with premium ABS material, this fan is resistant to oxidation, UV rays, aging, and yellowing, making it perfect for outdoor environments.2. 2 Way Ventilation: With a 90CFM airflow, this exhaust fan allows for quick airflow exchange between indoor and outdoor spaces, providing ventilation for your RV.3. Easy Installation: With a DC12V working voltage and a compact size, this vent fan is easy to install in spaces with a thickness of 50 x 120mm, providing efficient ventilation for your vehicle.4. Versatile Usage: Suitable for marine boats, yachts, RVs, trailers, motorhomes, etc., this ventilation exhaust fan is ideal for various indoor locations such as bathrooms, kitchens, warehouses, and lounges.5. High Performance: The 3000RPM motorhome roof vent fan efficiently circulates air, eliminating stuffiness and unpleasant smells for a refreshing and pleasant environment.Specification:Item Type: RV Roof Vent FanRated Current: 0.15ASize: Approx. 215 x 155mm / Approx. 8.46 x 6.10inInstallation Opening Size: Approx. 118mm / 4.6inSuitable Installation Thickness: Approx. 50 x 120mm / Approx. 1.97 x 4.72inFan Speed: 3000RPMAirflow: 90CFM (Two way ventilation switch, large air x exchange)Application: Suitable for RVs, campers, motorhomes, yachts, bathrooms, kitchens, warehouses, lounges. It can quickly exchange indoor and outdoor air, providing refreshing air for your cabin interior..Package List:1 x RV Roof Vent Fan1 x Cover5 x ScrewsNote:Installation requires drilling and wiring. We recommend professional engineers to assist in installation to ensure the best shopping experience.