Feature: 1. ALUMINUM ALLOY FRAME: The RV window features a high hardness heavy duty aluminum alloy frame with a smooth black paint coating, polished to smooth, ensuring excellent rusting performance and long lasting durability in outdoor environments. 2. WATER RESISTANT SEAL: Equipped with water resistant rubber gaskets on all four sides, the window provides a secure seal and shock absorption, ensuring complete sealing and water resistant inside the vehicle when the window is closed. 3. SUN PROTECTION: The 7mm double layer tinted acrylic glass provides effective sun protection, while the fly screen and sunshade curtain inner frame offer privacy and protection against fly, noise, and heat. 4. HYDRAULIC SUPPORT ROD: Comes with a pair of hydraulic support rods that automatically pop the window open and securely hold it at a 45 degree angle when needed, with two handles and a locking function for convenience. 5. WIDE APPLICATION: Suitable for RVs, and construction vehicles, the 28 x 12in trailer window is a solution for leaking, damaged, or unsatisfactory windows, with easy installation steps provided for a convenient experience. Specification: Item Type: RV Push Out Window Window Dimensions: Approx. 725 x 325mm / 29 x 13in Installation Hole Size: Approx. 700 x 300mm / 28 x 12in Main Material: Aluminum Alloy Frame + Double Acrylic + Rubber Washer Mounting Wall Thickness: Suitable for 18mm / 0.72 inch or 28mm / 1.12 inch wall thickness Characteristic: 7mm thickness of tinted acrylic glass flat outside and convex inside (the thickness of the inner projection is 18mm), can effectively prevent excessive direct sun rays, with automatic pop up hydraulic support rod, when you need to open the window, hydraulic rod can be automatically pop up window and fixed at 45 degrees. Internal 2 handles are fitted with a locking function. Equipped with fly screens and sun shade privacy curtains inside the frame, it can well protect the privacy, protect against sound and heat. Can be used in storage compartments, living rooms, lounges or anywhere a window is needed.Application: Suitable for RVs, mobile homes and other places where windows are needed, providing a solution for your leaky, broken and unsatisfactory windows.. Package List: 1 x Push Out Window 1 x Sunshade Curtain 1 x Fixing Clamp Frame 20 x Short Screws 4 x Long Screws Note: 1. Please carefully check the size before making a purchase to ensure it is the item you need. 2. Installation requires a certain level of difficulty, and we strongly recommend having professional engineers perform the installation to ensure your best shopping experience. 3. Be cautious of bumping during the installation process and pay attention to safety.