DetailsR-8 Register Box
1" perimeter flange provided for easy installation.
Design includes 1/2" drywall lip and rounded corners for added safety.
Opening 1/4" oversized to accommodate register/grille.
Dual Bead design for added strength.
Black diffuser board coated with EPA registered anti-microbial protective acrylic agent along air stream side.
R-8 Register Box Models:
R8BF: R-8 flanged register box.
R8BU: R-8 unflanged register box.
R8BFG: R-8 flanged register box with gasket.
California residents: see Proposition 65 Warning
Weight 1.76 Pounds (Lb) Width 12 Inches (In) Height 8 Inches (In) Country of Origin USA Length 4.5 Inches (In) Brand Miami Tech R-Value R8 Flanged Yes Galvanized Yes Adjustable No Composition Steel & Fiberglass Finish Yes Gauge 30 GA Insulated Yes Size 8" x 4"