McDonnell & Miller 61 Boiler Low Water Cut-OffThe McDonnell & Miller 61 Boiler Low Water Cut Off is a critical safety device that prevents boiler damage by automatically stopping operation when water is too low. This Boiler Low Water Cut Off provides reliable protection for steam systems in both residential and commercial setups. With mechanical actuation, it delivers dependable performance without the need for batteries or electronics. Key specifications include 1 inch threaded port connections,

it reduces downtime and supports faster turnaround during maintenance cycles

Terminals: Rc

Voltage / Current: 120 VAC

Choose this dependable gas regulator spring for long-term performance

Applications: General service

Honeywell T775B2024

including 10 Amp at 24V AC (Resistive)

while the NEMA 3 enclosure protects it in demanding environments

Rating: 36–248 F water service

Maintains accurate blower speed control to optimize furnace efficiency

This pressure switch

It’s suitable for HVAC applications