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The ND series of Ultra-Zone dampers was designed with the installer and homeowner in mind. With a sturdier frame, the damper installs in the duct much faster and easier and the nylon bushings insure quieter operation. This is a feature that homeowners will never hear about! Quieter operation and a longer life motor equals NO call backs.
ND-RSD series dampers come with a spring return style motor.

  • Heavy Duty Frame
  • Nylon Bushings for Quieter Operation
  • Revolutionary Motor with greater Reliability
  • Low Leakage
  • Simple 3-wire Hook-up

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    30" x 18"


    Normally Closed


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