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