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Key Benefits for Technicians: OEM Fitment: Precision-stamped to Reznor 115140 factory dimensions for a zero-gap seal on OHOB units
As a primary sensing element for conductivity liquid level controls
Leak-Free Reliability: Engineered for high-pressure durability
which is critical for maintaining optimal HVAC burner ignition cycles
McDonnell & Miller 157S-P Controller R-407A Key Benefits for Technicians: OEMThe McDonnell & Miller 157S P Controller (Part #175802) is a precision engineered combination low water cut off and pump controller designed for commercial and industrial steam boilers of any steaming capacity. As the direct replacement for the legacy McDonnell & Miller 157S, this unit integrates a manual reset mechanism to ensure rigorous safety protocols in the event of a low water condition. Featuring a robust Monel bellows for superior corrosion