Improved hose extension: Use our connector to maximize the cooling capacity of your portable air conditioner. It provides additional working space for your air conditioning exhaust pipe and allows more flexibility for the pipe to pass through the wall or window frame, helping achieve optimal efficiency. Easy installation: The air conditioning hose connector can be securely screwed into place without the need for professional tools, ensuring a tight fit and helping reduce energy consumption. Wide application: This portable AC coupler expands installation options for your unit. It is compatible with both clockwise and counterclockwise exhaust pipes and offers two pipe size options to fit outer pipes of 15 cm and inner pipes of 13 cm, increasing compatibility and performance. Safe connection: Ensures both ends are securely joined, effectively isolating and quickly discharging hot air through the exhaust pipe to enhance air conditioning efficiency. Color: White Material: Plastic Package Contents: 1 x Exhaust Pipe Connector Note: Light reflection and different display settings may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.