McDonnell & Miller 67-G Low Water Cut Off
McDonnell & Miller 67-G 3/4" NPT, 20 PSI Max Boiler Pressure, Auto Reset Mechanical Low Water Cut Off for Steam Boilers and Millivot Service (Part Number 149600)
QUESTIONS & ANSWERS
Ask a Question-
What is the difference between a 67 and a 67-G?
The G is for millivolt service.