Maxitrol MR212EH-1616 Valve R-407A The ZoneFirst RDP-12 is a

The ZoneFirst RDP-12 is a professional-grade 12 inch round damper engineered for precision airflow management in residential and light commercial HVAC zoning systems

reducing the potential for compressor damage

The ASCO 302-037 Rebuild Kit is specifically designed for use with ASCO 8263 Series 2-way internal pilot-operated solenoid valves

Common triggers for replacement include visible cracking

Maxitrol MR212EH-1616 Valve R-407A The ZoneFirst RDP-12 is aThe Maxitrol MR212EH 1616 is a professional grade 2" NPT modulating gas valve and regulator specifically engineered for high performance direct fired burners operating under negative pressure conditions. As a cornerstone of the Maxitrol Selectra series, this dual function component provides simultaneous pressure regulation and high span modulation, ensuring an infinite and continuous flame adjustment without the need for additional upstream pressure