The Master Flow 12 in. x 4 in. x 6 in. 90° Register Box is designed for 6 in. round ducts. This 30-Gauge register box is made of zinc-coated galvanized steel. This register box has a maximum temperature rating of up to 390°F and a minimum temperature of as low as -100°F.
- Made of zinc-coated galvanized steel
- Designed for 6 in. round ducts
- Features a minimum temperature rating of -100°F and a maximum temperature rating of 390°F
- 6 in. D x 9 in. L