【Easy to install, perfect sealing】 Our window air conditioner caulking offers a ready-to-use solution for mobile air conditioners. Thanks to its durable zipper, it quickly attaches between the window and frame, effectively blocking insects, rain and hot air returns, while optimizing heat evacuation. No complex installation required - save time and effort! 【Wide Compatibility】Window seal for mobile air conditioner compatible with mobile air conditioners, dryers, dehumidifiers and extraction systems. Window seal is suitable exclusively for casement windows (tilt and turn or classic), vasistas and patio doors opening outwards. Not usable on standard sliding windows or doors. 【Energy Saving in Summer】The window kit for mobile air conditioner, made of durable nylon, allows easy sliding on the chassis. By inserting the tube, close the zip and the heat remains out. This practical air seal prevents hot exhaust air from returning to the room. The windows can be closed easily when leaving, without the need to disassemble the kit. 【Perfect Fit】 The mobile air conditioner window kit is perfect for windows up to 400 cm in size. It fits windows with four sides no more than 400 cm. If the window is less than 400 cm, it may be necessary to make some adjustments: just create loops/folds and seal them with adhesive tape to achieve a perfect seal. 【Easy to Use】 The Caulking Fabric for Windows is simple to use: just apply the hook adhesive tape on the inside of the window frame and on the window itself, then attach the caulking fabric to the hook tape. Then, open the zipper of the caulking cloth, run the air conditioner hose through the window, and finally, close the zipper tightly around the hose. No drilling or disassembly required: convenient for homes, rentals and other temporary uses., Manufacturer: HUFACAI