High-quality materials: made of ABS, and environmentally friendly. Size: 15cm diameter portable air conditioner hose square connector. Application: All and exhaust hoses. Connect the exhaust hose and the window kit board connection. Flexibility: The length of the exhaust hose can be easily extended to any position you want. Advantages: Excellent air conditioning hose sealing can help reduce energy consumption, and a reasonably structured exhaust ventilation system can save electricity bills under an efficient cooling system. Type: Air conditioning nozzle fittings Name: Air conditioner exhaust pipe connector Category: Air Conditioning Accessories Shape: square interface Colour:gray Material:ABS Size:18x15x6.5CM Inner aperture: 15CM Package Contents: 1x Hose connector Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.