Universal Clockwise Counterclockwise threaded coupler connects to a threaded hose. Exhaust Hose Coupler a best solution for putting my exhaust through the wall or your window.Ac air conditioner exhaust hose coupler: fit on tubes with . Compatible with Outer diameter 150mm. Inner diameter 6 inch.Portable flex duct coupler inner: diameter does not take the thread into consideration and is the maximum diameter of a compatible tube.Using this portable connector to extend the exhaust duct no needs to distinguish between left-handed and -handed. Left-handed and -handed can be used. One left-handed -handed can also be connected.-friendly design: universal model, suitable for all portable air conditioners with 5.9 inch diameter hoses.Colour:As shownMaterial:plasticSize:150mmPackage Contents:1 * Portable AC CouplerOnly 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 . The measurement allowed error is +/- 1-3cm.