Master Flow 6 in. x 6 in. to 6 in. Ceiling Register Box

The Master Flow 6 in. x 6 in. x 6 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.