Fits all 5.9 inch- 6 inch Hoses: Fits on the back of many portable Air Conditioner units. to fit down to 5.9 inch diameter exhaust hose. Fits both Clockwise and counterclockwise hoses. Easy to Use: No tools needed. No drilling. Connected to the exhaust hose, and can be easily installed on the back of the portable air conditioner. Enhance Cooling: This adapter can attach exhaust hose closely on your a/c unit, so that your air conditioning unit can be more efficient and cools your room at short time. High Quality: Made from plastic material. Durable and money-saving, can be used for a long time. Model: round Diameter: 15cm Material:plastic colour:Gray White Package Contents: 1 * interface Only the above package content, other are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm. When shopping, please pay attention to the size and dimensions of the product to ensure that it meets your needs. In the title and , we have provided detailed information about the product, including its features and specifications We want you to be completely satisfied with your purchase, so if you have any questions or concerns, please don''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''t hesitate to contact us. We are here to help and will do our best to assist you. Thank you for choosing our product. We hope you enjoy it!