The Master Flow 5 in. Storm Collar is designed for 5 in. round ducts. This 30 gauge storm collar is made of zinc-coated galvanized steel. The maximum temperature rating is up to 390 degrees Fahrenheit and the minimum temperature is as low as -100 degrees Fahrenheit.
- Made of zinc-coated galvanized steel
- Designed for 5 in. round ducts
- Can be used with an internally lined or unlined plenum
- Features a minimum temperature rating of -100 degrees Fahrenheit and a maximum temperature rating of 390 degrees Fahrenheit













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