The Zonefirst AOBD-12X8 Damper is a professional-grade automatic opposed blade damper engineered for precise airflow management in residential and commercial zoning applications

Key Benefits Direct OEM Replacement: Seamlessly replaces Lennox 25G4301 and Littlefuse SSAC CT30S1 models

Utilizing a genuine Reznor heating system harness helps field contractors maintain electrical safety standards and avoid the voltage drop issues often associated with generic high-resistance modifications

while the NEMA 4X enclosure provides superior protection against corrosion and moisture in demanding environments

effectively limiting peak let-through current to protect downstream branch circuit components and sensitive control transformers

Robertshaw 700-057 Gas Valve THPU32HP7Y The Zonefirst AOBD-12X8 Damper isThe Robertshaw 700 057 Gas Valve is a high capacity, 1 inch NPT universal gas valve designed for heavy duty residential and commercial applications, including boilers, central heating units, and large scale furnaces. This 24VAC intermittent pilot gas valve is a versatile 700 Series Uni Kit, providing technicians with a multi functional control solution that replaces over 70 competitors' models. It features a factory preset 4" WC natural gas pressure