RB-122-E | ( RB-122 ) 120v Probe Type Low Water Cut Off For Hot Water Boilers Includes Test Switch 144676 Replaces PS851-120 RB-122 RB-120 900 901 | MCDONNELL & MILLER

MCDONNELL & MILLER RB-122-E 120V Probe Type Low Water Cut Off Switch: The RB-122-E is a 120v probe type low water cut off switch specifically designed for hot water boilers. This switch is crucial for safety and boiler protection, preventing boiler damage due to low water levels. The RB-122-E includes a test switch for easy functionality verification, ensuring reliable operation. As a replacement for PS851-120, RB-122, RB-120, 900, and 901 switches, the RB-122-E provides a dependable solution for your hot water boiler's water level monitoring needs. Upgrade your boiler system with this high-quality low water cut off switch from MCDONNELL & MILLER today!