Master Flow's sturdy Rectangular Duct is used as the main trunk lines in HVAC supply systems. Two L sections snap together to form the rectangular duct. Sold in \"L\" sections. Two pieces must be ordered to produce a full section of duct. Drive and \"S\" Cleats are sold separately. Constructed of 28 Gauge galvanized steel.
Sold in Half Sections - 2 pieces needed for complete section of duct
Sections easily snap together with no tools necessary
Can be cut to needed length with simple tin snips (not included)
Notched corners for easily connecting sections， or use cleats (cleats not included)
Always seal seams with code-approved mastic， sealant or duct tape (not included)
Install with sheet metal screws (not included)
Always insulate ductwork for greater system efficiency and comfort
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