This Master Flow Insulated Register Box is constructed from durable 30-gauge zinc-coated galvanized steel, designed to transition from round or flexible ductwork to an air register or grille. It features a pre-insulated design with a 1-inch fiberglass insulation lining and a built-in vapor barrier, providing an R4 insulating value that helps control condensation and significantly reduces HVAC system noise. The unit is intended for easy installation using sheet metal screws and seams should be sealed with code-approved mastic or duct tape for optimal efficiency

Master Flow

Master Flow 12 in. x 6 in. to 8 in. Insulated Register Box

SKU 814203
Regular price
$24.00

This Master Flow Insulated Register Box is constructed from durable 30-gauge zinc-coated galvanized steel, designed to transition from round or flexible ductwork to an air register or grille. It features a pre-insulated design with a 1-inch fiberglass insulation lining and a built-in vapor barrier, providing an R4 insulating value that helps control condensation and significantly reduces HVAC system noise. The unit is intended for easy installation using sheet metal screws and seams should be sealed with code-approved mastic or duct tape for optimal efficiency

Regular price
$24.00

This Master Flow Insulated Register Box is constructed from durable 30-gauge zinc-coated galvanized steel, designed to transition from round or flexible ductwork to an air register or grille. It features a pre-insulated design with a 1-inch fiberglass insulation lining and a built-in vapor barrier, providing an R4 insulating value that helps control condensation and significantly reduces HVAC system noise. The unit is intended for easy installation using sheet metal screws and seams should be sealed with code-approved mastic or duct tape for optimal efficiency

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