link to this product (Special discount). https://www.amazon.com/JOYOOO-Portabl... This is the best Accessories in the marketplace with cheap price that you can easily afford. gulrear Portable Air Conditioner Window Seal, Portable AC Window Kit, Airlock Window Seal for Portable Air Conditioner, Hot Air Stop Air Exchange Guards with Zipping and Adhesive Fastener Reviews: 【Wide Application】Portable ac window kit suitable for portable mobile air conditioners, dryers, exhaust dryers, and dehumidifiers. Block the return of hot air and reduce the power consumption effectively, save electricity charges, more energy saving. 【Ingenious Innovative】Air conditioner window Seal Simply apply the adhesive hook tape to the inside of your window frame and to the window itself. Attach the window seal to the hook tape. Then, open the zip on the window seal and place your air conditioner hose out of the window. In the end, close the zip tightly around the hose. 【Energy Saving In Summer】Ac window seal is made of durable nylon material for easy sashing slide. Push through the tube, the zipper closed and the heat stays outside. This practical airlock prevents the warm exhaust air from returning into the room. The windows can be closed easily when leaving. There is no need to disassemble. 【Keep Indoor Cool The Air 】Window seal for portable air conditioner around open window, zips around the nozzle of your air conditioner hose stopping the return flow of warm air and making your air conditioner as efficient as possible. 【Designed For Casement Window】Air conditioner window kit not suitable for sliding windows, suitable for windows that bottom hung windows or skylights, fits window with a maximum perimeter of 400 CM(four sides of the window). gulrear Portable Air Conditioner Window Seal, Portable AC Window Kit, Airlock Window Seal for Portable Air Conditioner, Hot Air Stop Air Exchange Guards with Zipping and Adhesive Fastener