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Round Smoke Damper, Steel, UL555S Classified, Class I


  • UL555S Class I.
  • Rated to 4,000 fpm and 4" w.g.
  • Extremely tight shut-off.
  • Stops the leakage of smoke in static and dynamic smoke systems.
  • Easy installation.
  • Readily connects to round spiral or flexible ductwork.


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Additional Info

  • Blade Type: Round
  • Rating: 1-1/2 Hours
  • AMCA Certified: No
  • Modulating: No
  • Grille Access: No
  • Explosion Proof: No
  • Leakage Class: Class I

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