Note: Please accurately measure the diameter and installation direction of your air conditioner hose (counterclockwise) before purchasing. Warm Tips: Our portable air conditioner hose has a counterclockwise thread direction. There are two sizes: 15 cm (outer edge to outer edge) in diameter. Please take accurate measurements before purchasing, so be sure to check that this is correct for your air conditioner before purchasing. High Quality PP Material: The exhaust hose is made of reinforced polypropylene with a built-in high-quality steel ring, which is more stable than soft material hoses on the market and has excellent heat resistance and corrosion resistance. It is a good replacement when the essential portable air conditioner exhaust hose is cracked. Good Scalability The portable air conditioner hose is retractable, shortens to 30/38 cm and can be extended to 200-300 cm, which makes it easy to extend the exhaust hose to fit wherever you want, flexible at home or in the office, the