McDonnell & Miller 94-M Pump Controller R-22 5 inches in length with

5 inches in length with a 1-7/8 inch mounting hole spread

For watertight or explosion-proof needs

This module is essential for commercial HVACR applications requiring reliable digital temperature monitoring and field-level troubleshooting

directly improving furnace motor efficiency and air circulation performance

McDonnell & Miller 94-M Pump Controller R-22 5 inches in length withThe McDonnell & Miller 94 M is proof of heavy duty reliability for high pressure steam applications, serving as a robust combination low water cut off and pump controller. Designed specifically for steam boilers with a maximum pressure of 250 psi, this unit utilizes manual reset SPDT switches to ensure precise water level management and failsafe protection. The dual snap acting switches prevent rapid cycling, reducing mechanical wear on your pump