Honeywell EARD6TZ TrueZONE 6in Round Fresh Air Damper

EARD6TZ HONEYWELL 6" ROUND FRESH AIR DAMPER 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.