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UL 181 Foil Duct

Builder's Best 110224 UL 181 Flexible Foil Ventilation Duct, 4" x 8'


  • Metalized Polyester Foil
  • UL 181, Class 1 air connector label
  • Steel wire support
  • Airtight construction and smooth inner core
  • Tear and puncture resistant
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