Horizontal Sliding RV Window 40.6 X 13in Uv Resistant with Removable Insect Nets for Caravan Camping Trailer Black Applicable Wall Thickness: 33 to 38mm / 1.3 to 1.5in Item Type: RV WindowMaterial: Aluminum alloy frame + tempered glass + rubber seal ring Window Dimensions: Approx. 1030 x 330mm / 40.6 x 13in Installation Hole Size: Approx. 1000 x 300mmm  / 39.4 x 11.8in Applications: Tinted Windows with bug nets protect your privacy and ensure that the sun does not heat the inside of your RV, fully sealed Windows can keep your camper cold in the summer and warm in the winter, used in storage pods, living rooms, lounges or any location that needs Windows, can be used for your camper trailer retrofit and other projects Fitment: It is suitable for any location that needs Windows, such as camper trailer RV mobile home engineering vehicle