GAF Master Flow 10 in. D 30 Ga. Galvanized Steel Stack Duct Starting Collar
$65.39
$90.89
The Master Flow 3-1/4 in. x 10 in. Rectangular Stack Duct Starting Collar is made of durable, galvanized steel. It is used to transition from plenums (duct board or lined) or a flat surface to 3.25 in. x 10 in. stack duct. It installs easily with sheet-metal screws.Insulate ductwork for system efficiency and comfort,Easy to install,Strength and durability
