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The EARD is a round damper with a 24 Vac powered-open/spring-closed motor. It is used for fresh air intake for ventilation or for combustion makeup air.
  • Adjustable damper position range stops.
  • Single-blade damper.
  • Shipped as power open/spring return closed damper.
  • Galvanized steel.
  • Quiet operation.
  • Can be field-converted to power closed/spring return open damper.
  • Blade closes off tightly against gasket for minimal leakage.
  • Male (crimped) and female (uncrimped) ends to connect to any rigid or flexible round duct.
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Galvanized Steel


Air Quality




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