Feature: 1. Durable Material: The frame of the round corner vertical sliding window is made of high strength aluminum alloy, coated with black powder to ensure wear resistance and oxidation resistance, long service time in the outdoor environment. 2. Waterproof Window: The vertical sliding window is equipped with waterproof rubber ring to ensure complete sealing and waterproof performance to keep your camper cool in summer and warm in winter. 3. Tempered Glass: The 4mm thickness black tinted vertical sliding glass ensures the overall robustness and safety, and the colored glass effectively resisting heat to prevent overheating camper inside. 4. Single Side Control: The sliding window can be opened or closed by sliding one side, with removable insect netting to prevent insects and bugs, can be used to enhance indoor brightness or as a vent window. 5. Various Uses: The replacement vertical sliding window is suitable for storage compartments, living rooms, lounges, also for trailers, campers, RVs, construction vehicles, for repair and refit. Specification: Item Type: RV Vertical Sliding Window Material: Aluminum Alloy Frame, Tempered Glass, Rubber Seal Ring External Window Size: Approx. 730 x 480mm/28.7 x 18.9in Installation Hole Size: Approx. 700 x 450mm/27.6 x 17.7in Fitment: Camper, Trailer, RV, Mobile Home, Engineering Car. Package List: 1 x RV Vertical Sliding Window 1 x Fixing Frame1 x Fixing Screw Package (16Pcs) Note: 1. It is highly recommended to find professional engineers to assist in installation to ensure perfect shopping experience.2. All round protection of packaging and distribution, to ensure that the window is in a new state when it is delivered to your hands, please pay attention to avoid damage caused by knock when disassembling.3. The size of the product is large, please confirm that it is the correct size you need before purchase.