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Steel Square or Rectangular Damper for Models 1240, 1240P, and 51240 Modular Core Diffusers
The OBD1240 is a steel opposed blade damper operated by a flat-head screwdriver. This damper attaches directly to the neck of our 1240 series diffusers, and is useful for air balancing.
  • Opposed Blade Damper for 1240, 51240 and 1240P Series
  • Steel Construction
  • Standard Finish is Mill