Master Flow 14 in. x 14 in. to 12 in. Ceiling Register Box
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The Master Flow 14 in. x 14 in. to 12 in. Ceiling Register Box features a 30-gauge, galvanized-steel construction to provide strength and durability. This ceiling register box creates a transition from round pipe or insulated flexible duct to an air register or grille. It can be installed with sheet-metal screws.