Common Questions: What is the difference between Watts 0383368 and the 740-1 1/4-60

The unit is integrated into the boiler safety circuit

The inclusion of the internal check valve facilitates bi-flow operation

some technicians use these in retrofit scenarios

the GC10116 is designed to handle high-torque loads while maintaining precise alignment to prevent premature bearing failure and vibration-related system fatigue

McDonnell & Miller 94-A Pump Controller R-22 Common Questions: What is theThe McDonnell & Miller 94 A Pump Controller (Part Number 165500) is a heavy duty combination low water cut off and liquid level control engineered specifically for commercial and industrial steam boilers. Rated for a maximum pressure of 250 PSI, this float operated unit provides reliable burner protection and automatic feed pump cycling to maintain consistent water levels regardless of steaming capacity. Unlike standard models, the 94 A features 1 1