Brand : Macy
Option : Bellmouth Collar
- HVAC Duct Collar
- Type Bellmouth Collar
- Applicable Standard UL 723, NFPA 55
- Size 12" Gasketed x 12" Gasketed
- Used On HVAC Spiral Duct
- Overlapped and Stitched Welded Along the Entire Length of the Fitting; Standard Seam Gore-Locked; Button Punch; Spot Welded; SPIRAmir Connections Satisfies SMACNA'S Leakage Class 3 Requirements, per SMACNA'S Duct Design Manual from -20" WG to +12" WG; SPIRAmir Spiral Duct System Produces a Flame Spread Index of Zero and Developed Index of Zero
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