Ducting 4" 1100 S Black Core - Thermoflo

Benefits of the 1100S Manufactured with 2-ply laminate commercial grade casing & double sealed core Galvanized spring steel helix maintains duct shape and prevents rust Oversized to fit easily onto connectors and fans Materials are flame resistant and comply with NFPA standards 90A & 90B Made in North America w...Read more


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Description

Benefits of the 1100S

  • Manufactured with 2-ply laminate commercial grade casing & double sealed core
  • Galvanized spring steel helix maintains duct shape and prevents rust
  • Oversized to fit easily onto connectors and fans
  • Materials are flame resistant and comply with NFPA standards 90A & 90B
  • Made in North America with strict quality controls
  • Available in 25’
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