This SPDT Pressure Switch (Single Pole Double Throw) functions as a direct OEM replacement part for the now-obsolete PRS3406

Refrigerant # Cntrl

This OEM solenoid hardware kit is a professional-grade solution designed to replace worn water lines and internal components that often scale up over several seasons

This part acts as the primary motor support bracket

Solid core desiccant provides maximum moisture adsorption and acid neutralization to protect the compressor from chemical damage

Zonefirst AOBD-20X8 Damper R-410A This SPDT Pressure Switch (SingleThe Zonefirst AOBD 20X8 is a high performance automatic opposed blade damper designed for precision airflow management in commercial and residential HVAC zoning. This 20" x 8" unit features a robust 24Vac power open power closed actuator, requiring a 3 wire connection for positive drive control in both directions. Unlike standard gravity or spring return models, the AOBD 20X8 side mount damper utilizes a synchronous motor that draws power only during