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Sheet Metal  Round Pipe & Fittings  Nordfab Ductwork

Nordfab ductwork clamps together in seconds without welds, bolts, screws, flanges, special tools, precise measurements or specialized skills. It cuts installation time - and duct-related downtime - by more than 45% over traditional ductwork.
For more information:
http://www.nordfab.com/wp-content/uploads/Nordfab_QF_Product_Catalog_2017.pdf