FUNCTION: Makes a quick and easy connection from your pipe to a multitude of 4Inch dust collector fittings - Takes all of the work out of connecting, disconnecting or switching from one machine to another. VERSATILE: This pipe to hose adapter is ideal for any professional woodworker or dust control system that utilizes y-shaped, t-shaped, elbows, blast gates and other fittings. BUILD: Featuring a non-threaded, ABS plastic construction, this dust collection adapter was designed for durability and made to withstand the wear and tear often associated with woodworking dust extraction. SPECS: Narrow end measures 4-Inch O.D. and 3-49/64-Inch I.D. to fit inside 4-Inch I.D. dust collection hose. Large end measures 4-7/32-Inch O.D. and 3-31/32-Inch I.D. to fit over a 4-Inch O.D. ports or fittings. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Color:As Shown Material:plastic Package Contents: 1 * Pipe Hose Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.