1、 Durable: The exhaust hose is made of thickened polypropylene for longer service life. It can withstand long-term heat and wear. No rebar, soft and elastic. 2、 Adjustable length: No need for a portable extension AC exhaust hose, keep our AC vents to a minimum length of 8.7 inches, or extend them fully to 60 inches. 3、 Cold and heat resistance: The exhaust pipe of this portable air conditioner is made of high-quality material, which has excellent cold and high-temperature resistance. 4、 Easy to install: Extend our air conditioner hose to meet the vent on the back of the air conditioner. Align and rotate the front of the hose onto the device-specific connector. 5、 High compatibility: Our air conditioner hoses have counter-clockwise threads, our air conditioner hoses are 9 inches in diameter and are suitable for many portable air conditioners. 1*Mobile Air Conditioning Exhaust Hose Material: ABSColor: black, white greySize: Type A: 15cm collar + 15cm universal interface + 1.5m*15cm exhaust duct, Type B: 1.5m*15cm exhaust duct, Type C: 15cm interface, Type D: 15cm colla