Honeywell ARD14TZ/U - TrueZONE 14" Round Automatic
Supply DamperFeatures: Features galvanized steel with single-blade damper, which closes off tightly against gasket for minimal leakageDesignated as power closed/spring return open damper for use with Honeywell Zoning SystemsCan be field-converted when used as an independent zone or for fresh air intakeRated to operate up to 1" WCAvailable in 5", 6", 7", 8", 9", 10", 12", 14", 16", 18" diameter sizes