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These OEM O-rings are designed to be compatible with the standard lubricants and refrigerants utilized in York commercial HVAC units
Engineered with a factory-calibrated 120-160F temperature range
a missing solenoid spring
OEM Compatibility: Exact replacement for Weil McLain boilers
the 52M71 serves as a high-durability upgrade for many systems
McDonnell & Miller 42S-HD Controller THPU32HP7Y These OEM O-rings are designedThe McDonnell & Miller 42S HD Controller is a high performance head mechanism only designed for seamless integration into existing Series 42 S float chambers. This replacement head mechanism is engineered for technicians who need to restore steam boiler safety without the labor intensive process of breaking down equalizing piping. Featuring SPST snap action switches, this controller provides high reliability low water cut off protection and precise
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