The Window Quick is the ideal alternative to window rails, as it provides a simple and installation-friendly solution for the predominantly used window systems. It now ensures that warm air from outside can no longer enter the room through the window opening. This significantly enhances the effectiveness of monoblock devices. Additionally, the Window Quick prevents the intrusion of pests. Since the Window Quick is universally applicable for all exhaust hoses, you receive an ideal supplementary product or problem solver. The sturdy fabric with two zippers allows the exhaust hose to be directed outside.