McDonnell & Miller 42S Controller 30067439-890 Broad Cross-Reference: Directly replaces obsolete

Broad Cross-Reference: Directly replaces obsolete part numbers 193804

keep the container tightly sealed until use

additional PVC fittings or plugs may be required depending on your specific installation requirements

You can selec the wire tap that matches your required RPM or utilize the multiple speeds if your control board supports it

McDonnell & Miller 42S Controller 30067439-890 Broad Cross-Reference: Directly replaces obsoleteThe McDonnell & Miller 42S Controller (Part Number 129302) is a critical float operated combination low water cut off (LWCO) and pump controller designed for residential, commercial, and industrial steam boilers. Engineered for systems with a separate water column, this steam boiler water level control features dual SPST snap action switches that provide reliable automatic reset functionality. The 129302 pump controller handles a maximum operating