Waterproof Mobile Door Window Seal

Features:
This window/door seal for air conditioning systems, which can stop hot air entering into your house by locking the hose between the window/door frame and the window door selbst to makes your room keep cooling.
Easy to install, no need to drill holes on the wall.
Suitable for left and right sliding sash window or doors.
Suitable for various models of portable air conditioner units.
The window/door still remains fully functional and can be closed and open as usual.