About Master Flow™ Register Box ‑ Straight

The Master Flow™ Universal Register Box creates a straight (in-line) transition from round pipe or insulated flexible duct to an air register. It features 30-Gauge, galvanized steel construction.

  Weight  Carton Quantity  Diameters

RB8X4X5

7 lb. (3.2 kg) 10 5" (127 mm)
RB12X6X6 9 lb. (4.08 kg) 6 6" (152 mm)
RB14X6X8 12.8 lb. (5.81 kg) 8 8" (203 mm)
RB14X8X8 17.5 lb. (7.95 kg) 10 8" (203 mm)
RB8X8X6 7.5 lb. (3.4 kg) 6 6" (152 mm)
RB12X2.25X6 7 lb. (3.2 kg)
6" (152 mm)
RB10X4X4
12.5 lb. (5.7 kg) 12 4" (102 mm)
RB10X4X5  14 lb. (6.4 kg) 12 5" (127 mm)
RB10X4X6 14.5 lb. (6.6 kg) 12 6" (152 mm)
RB10X6X6 13.05 lb. (5.9 kg) 14 6" (152 mm)
RB10X10X8 9.4 lb. (4.3 kg) 6 8" (203 mm)
RB12X4X6 13 lb. (5.9 kg) 9 6" (152 mm)

Features & Benefits

Product availability is subject to change without notice. Not all products are available from all facilities.

Product Documentation