Have this Master Flow Stack Boot delivered to your job site. Galvanized-steel construction. Creates an in-line transition between a round pipe or insulated-flexible duct to a rectangular stack or riser duct. Installs with sheet-metal screws. Insulate ductwork for system efficiency and comfort. Seal seams with code-approved mastic, sealant or duct tape (not included).

Have this Master Flow Stack Boot delivered to your job site. Galvanized-steel construction. Creates an in-line transition between a round pipe or insulated-flexible duct to a rectangular stack or riser duct. Installs with sheet-metal screws. Insulate ductwork for system efficiency and comfort. Seal seams with code-approved mastic, sealant or duct tape (not included).