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  • Stock Spiral Duct for Negative Pressure Applications

    June 26, 2023 | Blog | Steven
  • The non-corrugated, “stock” spiral duct can be used for commercial HVAC applications up to -1.0” WG through 42” diameter, up to -2.0” WG through 34” diameter, and up to -4.0” WG through 16” diameter.  

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