The Master Flow 8 in. x 4 in. x 5 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.
- Made of zinc-coated, 30 gauge-galvanized steel
- Pre-insulated no need to wrap
- 1 in. fiberglass insulation lining and vapor barrier helps absorb HVAC system noise and control condensation
- R4 insulating value
- Always seal seams with code approved mastic, sealant or duct tape
- Install with sheet metal screws