SKU: 63954158720
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and CXLB (sizes 30-105)
and refrigeration display cases
Universal Compatibility: This component serves as a direct drop-in for PLT2904 and PLT2904K models
providing a reliable seal for piston rings and reducing overall system breakdown in demanding contractor environments
making it a "truck stock" essential for 1H/1C HVAC systems
McDonnell & Miller 309200 Switch Refrigerant and CXLB (sizes 30-105)The McDonnell & Miller 309200 is an industrial grade 11 MV Millivolt Switch specifically engineered for low water cut off (LWCO) control in steam boiler applications. This millivolt replacement switch is the standard for technicians servicing McDonnell & Miller Series 61, 64, 67, 69, 70, 764, and 767 units. Featuring a Two SPST Auto Reset configuration, the 11 MV provides dual circuit control, allowing contractors to manage both the burner circuit and