[Size] 5.9 inches is compatible with portable air conditioners that have a 5.9-inch inner diameter exhaust hose. NOTE: Please measure your hose size before purchasing. [Universal Clockwise Counterclockwise Threaded Design] Our AC vent hose coupler is specially designed to support both clockwise and counterclockwise threading. You never need to worry about installing it in the wrong direction. [Durable Material] Made with hardened plastic, it is durable and strong enough to protect your AC hose connection and isolate exhaust air from your room. [Extend Your Exhaust Hose Anywhere] This AC hose coupler allows you to conveniently extend your exhaust hose to the desired length. Stay comfortable during hot summer days. Color: Light Grey Material: Plastic Size: 150mm Package Contents: 1 x Connector Only the above package content is included; other products are not included. Note: Lighting and different displays may cause slight variations in the color of the item shown in the picture compared to the actual product. Measurement allows an error of +/- 1-3 cm.