Exhaust Pipe Connector: Used to connect the exhaust pipe and can be easily installed on the back of the portable air conditioner. Made of high quality material, light and strong, durable and flexible. Air Conditioner Hose Exhaust Coupler: Applies to mobile air conditioner parts with a diameter of 13cm. So make sure that the distance between the exhaust pipe and the window is adequate. Easy to Install: Twist and snap installation is easy without the need for tape and screws and can be used for a long time. Widely Used: This window sliding plate / window adapter fits flexible pipe of portable air conditioning system for home office, window ventilation. Delivery Quantity: 1pc Package Contents: Only the above package contents, excluding other products. Size: 13cm in diameter (Reminder: The size is measured manually, please allow 1-2 cm measurement error) color: White (Due to different monitors and lighting effects, the actual color of the item may be slightly different from the color shown on the picture.)