This Master Flow 10 in. Seal seams with code-approved mastic, sealant or duct tape (not included). Stack Boot Rectangular Duct Galvanized Steel Durable 10 In. X 3-1/4 In. round pipe or insulated flexible duct to a 10 in.
It maintains the most efficient characteristics for airflow and is common throughout the country. A simple snap lock design and sturdy galvanized steel construction on Master Flow pipe creates a quick and secure installation that you can rely on.
Always insulate ductwork for greater system efficiency and comfort. Master Flow’s adjustable elbows are used to make turns in runs of round pipe and flexible duct through 90 degree. Always seal seams with building code approved sealant or duct tape.