Our airtight Clamp Together Duct Tubing System is a modular, laser welded, clamp-and-gasket joining system that is guaranteed to be leak-free. Each component terminates in a Vanstone edge (a 5/16" turned out lip) that allows it to be joined to the next piece using a fully encompassing sealing gasket and high strength clamp. An adjustable sleeve pipe allows for infinite adjustments in the field. The components (pipe, branches, elbows, etc.) are offered in a ‘light’ and ‘heavy’ standard gauges ranging from 22-18. Custom gauges and materials are available to fit your application, as well.