JANZU Portable Air Conditioner Exhaust Hose Coupler Window Adapter A/C Unit Tube Connector Parts & Accessories Square to Round

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. 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 No drilling. Connected to the exhaust hose, and can be easily installed on the back of the portable air conditioner. High Quality: Made from plastic material. and money-saving, can be used for a long time.