Feature: 1. Long Lasting Durability: Constructed from engineering grade ABS material, this ventilation grill is enduring, UV resistant, and aging resistant, suitable for various outdoor environments. 2. Water Resistant Design: Equipped with a water resistant air vent grille that provides ventilation while preventing gravel from entering, ensuring a clean and safe environment. 3. Clean Air Exchange: This ventilation outlet facilitates fast exchange of indoor and outdoor air, offering clean air for RVs, camping vehicle, trailers, boats, yachts and more. 4. Versatile Application: Widely used in bathrooms, kitchens, storage rooms, lounges, and suitable for quick air exchange in various vehicles and living spaces. It can also be used for wall repairs. 5. Easy Installation: Simply clean the installation surfaces, cut a square hole, apply water resistant glue to the edges, secure the grill with screws, and install the grid cover for a complete setup. Specification: Item Type: RV Side Air Ventilation Grille Size: Approx. 350x186mm / 13.78x7.32in Installation Hole Size: Approx. 320x155mm / 12.6x6.1in Application: Suitable for RVs, campers, motorhomes, trailers, caravans, bathrooms, kitchens, warehouses, and rest rooms. It can quickly exchange air between indoor and outdoor, providing clean air inside your vehicle and also used for repairing damaged walls. Installation Steps: 1. Confirm the position for installation and clean the surfaces. Cut a square hole of 320x155mm on the panel. 2. Place the vent outlet into the hole and apply water resistant glue on the four edges. 3. Secure the vent outlet with screws, install the grille cover, and ensure the grille is facing downward for waterproofing effect.. Package List: 1 x RV Side Air Ventilation Grille 3 x Screw Plugs 3 x Screws