▲ Made of high quality materials with good flexibility, durability and portability. It is not easy to break after prolonged use. ▲ Low friction loss, if installed correctly, will not leak. ▲ Can stretch and contract freely. ▲ Easy to install. Simply extend the exhaust hose to meet the existing hose, align it at both ends and snap it into place. ▲ Ideal for when the air conditioner is still running well, the necessary exhaust hose is broken and then you need to replace it.