Learn the ins and outs of the Ductmate 25 / 35 / 45 Flange Systems. A comprehensive guide to each Ductmate Flange, individual flange components, and step by step installation instructions. Learn more at http://ductmate.com
http://www.ductmate.com/product.aspx?id=5 These are the gold standard in the industry when it comes to rectangular ducts requiring a rigid, leak-proof connection. Ductmate offers Standing S and Standing Drive Cleat in a variety of metal and gauges. Our slips and drives are also available cut-to-length.