The Master Flow 12 in. x 6 in. x 6 in. 90-Degree Register Box creates a right-angle (90-degree) transition from 6 in. round pipe or insulated flexible duct to a 12 in. x 6 in. air register or grille. This register box is made of 30-gauge, galvanized steel to provide strength and durability. It can be installed with sheet-metal screws.
- Made of 30-gauge, galvanized steel for strength and durability
- Creates a right-angle (90-degree) transition from 6 in. round pipe or insulated flexible duct to a 12 in. x 6 in. air register or grille
- Use sheet-metal screws for a proper installation (not included)
- Always seal seams with code-approved mastic, sealant or duct tape (not included)
- Always insulate ductwork for greater system efficiency and comfort (insulation not included)
- Maximum temperature rating of 390 degrees Fahrenheit, minimum temperature rating of -100 degrees Fahrenheit

















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