Master Flow 12 in. x 6 in. to 6 in. Insulated Register Box

The Master Flow 12 in. x 6 in. x 6 in. Insulated Register Box is designed for durability. This register box is made of zinc-coated, 30-Gauge galvanized steel. The 1 in. fiberglass insulation helps reduce HVAC system noise and absorb condensation for a quiet and efficient system. This register box can be installed with sheet metal screws.