This Master Flow 12 in. W x 2-1/4 in. L x 6 in. Dia Universal Register Box is ideal for creating a straight, in-line transition from a round pipe to an air register. Insulate ductwork for system efficiency and comfort.
Galvanized steel construction
Creates a straight, in-line transition from a round pipe or insulated flexible duct to an air register or grille
Installs with sheet-metal screws
Insulate ductwork for system efficiency and comfort
Seal seams with code-approved mastic, sealant or duct tape (not included)
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