Attention - The portable air conditioner hose has a diameter of 15cm/5.9 inches. Please measure your hose before purchasing. Our portable air conditioner hose is counterclockwise. Make sure the connector rotation direction is counterclockwise. (Due to different production batches, the hose diameter may have an error of 1-2mm, but this will not affect normal use) New Second-Generation Material - Most portable air conditioner hoses on the market are made of ordinary PVC, which is easily damaged and deformed at high temperatures. The air conditioner hose is made of environmentally friendly polypropylene, which can withstand temperatures from -20°C to 70°C. In addition, an additional steel spring is built into the air conditioner hose to make it more robust and difficult to deform, and to ensure a longer service life. Adjustable - Our portable air conditioner hose is 79 inches/2 meters long, which can shrink to 15 inches/37 cm for easy storage. Thanks to the built-in steel spring, the