Universal Accessories: The portable air conditioner exhaust hose connector is designed as a universal fit for clockwise and counterclockwise threaded hoses. Exhaust Hose Connector: Firmly installed on the 5-inch pipe without leakage. outer diameter of about 130mm/5.12in. The inner diameter is about 5.00 inches. Extend to Any Length: You can easily use this AC hose coupler extender to connect the hose you need. It will extend your hose to the length you need, and make the hose pass through the wall or windows. Heavy-duty Design: This AC exhaust hose connector is made of ABS material, and the durable design allows it to be used for a long time. .