Category Products

  • SKU: MH1104
  • Ships within 4 business days

McDonnell & Miller model number 157SRBP-MD is a combination float-operated low water cut-off and pump controller for steam boilers with an integral water column.

Online Price: $1,573.84
Regular Price: $1,713.46

  • SKU: MH1127A
  • 2 in stock
  • Ships within 10 business days

McDonnell & Miller model number RB-122E is an electronic low water cut-off control unit, with probe, for use on hot water boilers. This cut-off unit is 120 volt and features an automatic reset. Its maximum water temperature is 250°F and pressure is 160 psi. It is a compact unit with 3/4" MIP connections and a 1-5/8" probe.

Online Price: $110.50
Regular Price: $119.70

  • SKU: MH1174A
  • 4 in stock
  • Ships within 10 business days

McDonnell & Miller model number RB-24E is an electronic low water cut-off control probe for hot water boilers. This probe is 24 volt with an automatic reset and a maximum pressure of 50 psi. It features a LED indicator light which show if there is power to the control unit or the presence of water in the boiler. It is a compact unit with 3/4" MIP connections and a 3/4"probe.

Online Price: $110.50
Regular Price: $119.70

  • SKU: MH1174B
  • Ships within 10 business days

McDonnell & Miller model number RB-24ES is an electronic low water cut-off control probe for hot water boilers. This probe is 24 volt with an automatic reset and a maximum pressure of 50 psi. It features a LED indicator light which show if there is power to the control unit or the presence of water in the boiler. It is a compact unit with 3/4" MIP connections and a 3/4"probe.

Online Price: $115.10
Regular Price: $124.69

  • SKU: MH1174T
  • Obsolete

McDonnell & Miller model number RBT-3000 is a remote electronic low water cut-off control probe for hot water boilers. This probe is 24 volt with a maximum pressure of 160 psi. It features a LCD display on the control box. It is a compact unit with 3/4" MIP connections and a 1-3/8"probe.

This item is obsolete. It is shown for reference purposes only. Please call (877) 775-7705 for repair parts and replacements.

  • SKU: MH1174V
  • Obsolete

McDonnell & Miller model number RBT-EC is a junction box for use with RBT-3000 electronic low water cut-off units.

This item is obsolete. It is shown for reference purposes only. Please call (877) 775-7705 for repair parts and replacements.

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