Mitchell Metal Products Ductboard Register Box, 8 x 4 Inch Size, 11 Inch Length, 7 Inch Width, 4-1/2 Inch Height, 30 ga Gauge, Steel, Galvanized, R-Value: R6
| Gauge | 30 ga |
| R-Value | R6 |
| Size | 8 x 4 in |
| Length | 11 in |
| Width | 7 in |
| Height | 4-1/2 in |
| Material | Steel |
| Finish | Galvanized |