Contractor-Friendly Design: The compact footprint and 1/2" NPT connections facilitate fast installs in restricted areas

providing a reliable alternative to standard copper when corrosive combustion byproducts are a concern

Broad Compatibility: Replaces older models including B1370149 and DB1370151

maintaining the structural integrity of the fan housing

this specific assembly is optimized for natural gas application

Resideo ARD9TZ Damper Els PW 17895 Contractor-Friendly Design: The compact footprintThe Resideo ARD9TZ is a 9 inch automatic round damper engineered specifically for high efficiency forced air zoning systems that require reliable airflow control. Operating on 24Vac, this two position damper uses a power closed spring return open actuator, ensuring a fail safe open position during power loss to maintain system circulation. This model is the professional grade direct replacement for ARD9TZ U, RDS 9, and CRDS09 legacy dampers.