Building Supplies › Master Flow › 90 Degree

The Master Flow 10 in. x 4 in. x 6 in. 90°Register Box creates a right-angle ... The Master Flow 10 in. x 4 in. x 6 in. 90°Register Box creates a right-angle transition from round pipe or insulated flexible duct to an air register. This box is made of galvanized steel. It can be installed with sheet metal screws. It is suitable... more