Keep Indoor Temperature ?- The Airlock seals around your open window and then 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?- Not Suitable for sliding windows,Suitable for windows that bottom hung windows or skylights, casement window,Fits window with a maximum perimeter of 400 CM(three sides of the window)
?Easy to Install - No need for Drilling Hose ? The fixing seal on the Velcro surfaces and frame is made of durable nylon material for easy sashing slide. Push through the tube, the zipper closed and the heat stays outside.The window can be closed despite window sealing.
?An ingenious innovative airlock 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. At the end, close the zip tightly around the hose.
?Variable to fit all hose diameters?Water resistant and washable Easy self-assembly Residue-free disassembly