Feature 1Aluminum Alloy Frame: Provides a beautiful appearance with black paint coating, ensuring long lasting anti rust and oxidation resistance, even in outdoor environments. 2Waterproof Sealed: The window's frame includes a waterproof rubber ring, providing both sealing and shock absorbing properties, ensuring a complete seal inside the vehicle when the window is closed. 3UV Resistant: With 7mm thick double layer colored acrylic glass boasting a flat exterior, offers privacy guard with built in mesh window and sunshade curtain, effectively blocking UV rays and external elements. 4Automatic Hydraulic Support Rods: Equipped with a pair of self popping hydraulic rods for easy window opening, 75 degree fixed support, and 3 handles with lock function. 5Wide Application: Window is suitable for a 25mm wall thickness installation. Ideal for camping vehicles, RVs, and construction vehicles, providing a solution for leaky, damaged, or unsatisfactory window. Item Type: RV Window Size: Approx. 525x425mm / 20x16in Material: Aluminum Alloy Frame + Double-layer Acrylic + Rubber Gasket Installation Cutout Size: Approx. 500x400mm / 20x16in Installation Thickness: Approx. 25mm / 1in Features: 7mm thick double layer colored acrylic glass with exterior flat and interior convex design (interior protrusion thickness is 18mm), effectively prevents excessive UV direct exposure, equipped with automatic pop out hydraulic support rod that can automatically open the window and fix it at 75 degrees when needed, three handles and lock function inside for added security, comes with net and sunshade privacy curtain inner frame to protect privacy, noise and heat. Application: Suitable for RVs, mobile homes, and any place that needs window installation, providing a solution for leaky, damaged, and unsatisfactory window. Package List 1 x Window 1 x Sunshade 1 x Fixed Clip Frame 16 x Screws Note 1. Installation may be difficult, we recommend seeking assistance from professional engineers for the best shopping experience.2. Please be careful to avoid collisions when disassembling and assembling. 3. Before purchasing, please measure the dimensions to ensure it is what you need.