Aprilaire 4311 Control Electrode 321894-709 provided they are configured for

provided they are configured for the correct equipment type

High-Voltage Compatibility: Specifically rated for 265V single-phase circuits

is a heavy-duty externally equalized thermal expansion valve designed for R22 refrigeration systems

Regular insulation testing with the UTT-01 can detect early signs of winding degradation before a catastrophic motor failure occurs

range for 325-3 units and 2-5 PSI for 220 series regulators

Aprilaire 4311 Control Electrode 321894-709 provided they are configured forThe Aprilaire 4311 Control Electrode is a critical internal component designed for high performance steam humidifiers, specifically engineered to work seamlessly within the Aprilaire Model 800 series. This replacement electrode plays a vital role in measuring water levels and electrical conductivity within the steam cylinder, ensuring the unit operates at peak efficiency. Designed for precise HVAC humidity control, the 4311 senses when the water has