20 X 12in RV Exit Window Acrylic Glass Tinted RV Window with Mesh Screen Support Rod For 28mm Thickness Wall for Camping Trailer Motorhome Item Type: RV Exit Window Main Material: Aluminum Alloy Frame + Double Layer Acrylic + Rubber Gasket Window Outer Size: Approx. 525 x 325mm / 21 x 13in Installation Opening Size: Approx. 500 x 300mm / 20 x 12in Applicable Wall Thickness: Approx. 28mm / 1.12in Advantages: 7mm / 0.3in thickness tinted acrylic glass outer flat inner convex (inner convex thickness is 18mm / 0.7in), effectively prevent excessive direct UV rays, with automatic pop out hydraulic support rod, which can automatically open the window and fix it at 45 degrees when you need to open the window, 2 handles inside with lock function, equipped with mesh screen and privacy curtain, can protect privacy well and block out sound, and heat, suitable for storage compartments, living spaces, lounges, or any location requiring windows Fitment: Suitable for RVs, mobile homes, etc., providing solutions for your leaking, damaged, and unsatisfactory windows Installation Steps: Step 1: Determine the position where the window will be installed, measure the dimensions and make proper markings Step 2: Cut a square rounded corner hole of 500 x 300mm / 20 x 12in at the installation location Step 3: Place the window into the cut hole and secure with adhesive Step 4: Install retainer ring at the back, clamp the gap between the retainer ring and the outer frame of the window tightly against the wall, and secure the retainer ring with screws Step 5: Apply water proof glue in the blank gap and sand the protruding parts to complete the installation