McDonnell & Miller Series 42S Combination Low Water Cut-Off / Pump Controllers
• 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 snap action switches
• Enclosed junction box protects switches
• Optional features
– Quick hook-up fittings
– Gauge glass connector
• Maximum pressure 50 psi (3.5 kg/cm2)
