Item Type: Air Conditioner Exhaust Hose Coupler Material: ABS Suitable For: Approx. 150mm / 5.9in air conditioning pipe 1Square to Round: Air hose fittings are round at one end and square at the other and can be installed on the back of many portable air conditioners. 2Rapid Heat Removal: This adapter tightly attaches the exhaust hose to your air conditioner exhaust, helping to quickly remove indoor heat. 3ABS Material: The exhaust hose connector is made of ABS material, which is light and strong, durable and flexible, and can be used for a long time. 4Low Wind Noise: This exhaust hose joint has low noise during operation, will not disturb your normal life and rest, and can be used with confidence. 5Easy Installation: The air conditioning exhaust hose connector adopts a thoughtful and practical universal thread design, which can be twisted clockwise or counterclockwise to connect, and there is no need to distinguish it when using it.1 x AirConditionerExhaustHoseCoupler