Feature:1. Good Sealing: The window is designed with rubber ring to ensure complete sealing and waterproof performance, with a drainage hole underneath to ensure rainwater flow.2. Tempered Glass: E4 certified 4mm thick black tempered glass, solid construction, effective resistance to ultraviolet rays, sound and heat, providing a comfortable interior environment.3. Slid Window: Push pull opening, one side of the glass can be pushed and pulled and the opening side has an insect screen to provide a barrier to insects.4. Complete Kit: Can be installed in portrait or landscape orientation, the package includes drain plugs, retaining rings, and screws to provide a solution for your broken windows.5. Application: Suitable for standard wall thickness of 5mm7mm or 53mm54mm, can be used in storage compartments, living rooms, lounges, suitable for campers, RVs, construction vehicles, etc.Specification:Item Type: RV WindowsMaterial: Aluminum alloy + tempered glass + rubberWindow Dimensions: 680x450mm (please allow 3cm error due to manual measurement)Installation Thickness: 5mm-7mm or 53mm-54mm sheet metal mounting (please allow 2mm error for glue fixing)Cut Out Size: Approx. 650x420mm/25.59x16.54in, can be used for longitudinal or horizontal installationApplicable: Suitable for campers, RVs, engineering vehicles and other locations that require windows.Package List:1 x650x420mm RV Window1 x Fixed Box1 x Pack of Water Guide Hole Stopper1 x Pack of Fixing ScrewNote:It is highly recommended to find a professional engineer to assist in the installation to ensure a perfect shopping experience