This Master Flow 10 in. x 6 in. to 6 in. Diameter Universal Register Box creates a straight (in-line) transition from round pipe or insulated flexible duct to an air register or grille. It can be installed with sheet metal screws. It is suitable for most HVAC applications. This universal register box is made of galvanized steel.
Galvanized steel construction
Creates a straight， in-line transition from 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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