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A spiral seam gives this duct greater strength and rigidity than standard duct.
Fittings have gaskets which create a tight seal—you don't need to seal joints with coating or tape.
No need for clamps or connectors—duct and fittings have a male end that is slightly smaller than its female end for simple assembly.
Vent smoke, water-based paint fumes, and welding fumes with this hose that gives you a clear view inside your line.
Unlike other duct hose that has a metal spiral, this hose has a plastic spiral that will not rust.
The smooth interior prevents dust from getting trapped and building up inside the hose.