McDonnell & Miller 129302

42S, Combo Low Water Cut-Off - Pump Controller (Steam)

• For residential, commercial, and industrial low and medium pressure steam boilers with a separate water column
• For boilers of any steaming capacity
• Monel bellows provides corrosion resistance
• Single pole, single throw mercury switches
• Enclosed junction box protects switches
• Optional features

- Quick hook-up fittings

- Gauge glass connector

- BSPT threads - Maximum pressure 50 psi (3.5 kg/cm2)