The Master Flow 12 in. x 6 in. x 8 in. Register Box with Flange is designed for 8 in. round ducts. This 30-Gauge register box with flange is made of zinc-coated galvanized steel. The maximum temperature rating is up to 390 degree F and the minimum temperature rating is as low as -100 degree F.
Made of zinc-coated galvanized steel
Designed for 8 in. ducts
30-Gauge
Seal seams with code-approved mastic, sealant or duct tape (sold separately)
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