- Durable material: Made of high-quality, durable, and stable materials, it will not scratch or damage the window. - Practical accessories: By connecting the hose to vent the hot air from the mobile air conditioner, the cooling time can be shortened. - Universal: Suitable for most portable air conditioners with an air outlet diameter of 13 cm. - Easy to install: Easily installed and removed, saving space. Used to connect the exhaust hose and can be easily installed at the back of the portable air conditioner. - Wide application: Suitable for a variety of installation environments, heating, and air conditioning ventilation.