Eliminate flimsy duct tape connections while making an airtight seal with Dust Right® Flexible Rubber Unions! These rubber unions solve irregular dust collection problems by giving you the flexibility to join lengths of pipe that aren't of the same diameter or aren't exactly aligned. Also available in 2-1/2" I.D. Includes a pair of clamps to give you an airtight seal. The 4" rubber coupler is 4" long with a 4" ID. The Dust Right® Rubber Union eliminates flimsy duct tape connections while making an airtight seal. It provides the flexibility to join lengths of pipe that aren't exactly aligned while being flexible enough to bridge slight diameter differences in pipe.
NOTE: Not recommended for water or plumbing applications.