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  • SKU: MH1022
  • In Stock

McDonnell & Miller model number 42S is a combination float-operated low water cut-off and pump controller for steam boilers that have a separate water column. This control features an automatic reset and two 120 volt, bi-metal, two-wire, single pole, single throw snap switches. Its maximum pressure is 50 psi and it has a tapped 1" FIP connection.

Price: $590.18

  • SKU: MH1023
  • In Stock

McDonnell & Miller model number 42S-A is a combination float-operated low water cut-off and pump controller with quick hook-up fittings for steam boilers. This control features an automatic reset and two 120 volt, bi-metal, two-wire, single pole, single throw snap switches. Its maximum pressure is 50 psi and it has a tapped 1" FIP connection.

Price: $820.06

  • SKU: MH1023A
  • In Stock

McDonnell & Miller model number 42S-N is a combination float-operated low water cut-off and pump controller with 1/2" IP gauge glass connections for steam boilers. This control features an automatic reset and two 120 volt, bi-metal, two-wire, single pole, single throw snap switches. Its maximum pressure is 50 psi and it has a tapped 1" FIP connection.

Price: $685.79

  • SKU: MH1024
  • In Stock

McDonnell & Miller model number 47-2M is a combination float-operated low water cut-off and water feeder with quick hook-up connections for steam or hot water boilers. This control features a manual reset with a 120 volt number 2 cut-off switch, proportional feed action, and continuous maintenance of minimum safe water levels independent of electrical service. Its maximum water pressure is 150 psi and maximum steam pressure is 25 psi.

Price: $800.89

  • SKU: MH1050
  • In Stock

McDonnell & Miller model number 61 is a float-operated low water cut-off for steam boilers. This control features an automatic reset with dual 120 volt switches for low water cut-off and alarm or electric water feeders. Its maximum pressure is 20 psi and has a tapped 1" FIP connection for equalizing pipes. Blow down valve required.

Price: $355.06

  • SKU: MH1055
  • In Stock

McDonnell & Miller model number 63 is a float-operated low water cut-off for steam or hot water boilers. This control features an automatic reset with dual 120 volt switches for low water cut-off and alarm or electric water feeders. Its maximum pressure is 50 psi and has a tapped 1" FIP connection for equalizing pipes. Blow down valve required.

Price: $446.00

  • SKU: MH1056
  • In Stock

McDonnell & Miller model number 63M is a float-operated low water cut-off for steam or hot water boilers. This control features a manual reset with dual 120 volt switches for low water cut-off and alarm or electric water feeders. Its maximum pressure is 50 psi and has a tapped 1" FIP connection for equalizing pipes. Blow down valve required.

Price: $446.00

  • SKU: MH1060
  • In Stock

McDonnell & Miller model number 64 is a float-operated low water cut-off for steam or hot water boilers. This control features an automatic reset with dual 120 volt switches for low water cut-off and alarm or electric water feeders. Its maximum pressure is 50 psi and has a tapped 1" FIP connection for equalizing pipes. Blow down valve required.

Price: $383.66

  • SKU: MH1061
  • In Stock

McDonnell & Miller model number 64M is a float-operated low water cut-off for steam or hot water boilers. This control features a manual reset with dual 120 volt switches for low water cut-off and alarm or electric water feeders. Its maximum pressure is 50 psi and has a tapped 1" FIP connection for equalizing pipes. Blow down valve required.

Price: $417.24

  • SKU: MH1062
  • In Stock

McDonnell & Miller model number 64A is a float-operated low water cut-off with quick hook-up fittings for steam or hot water boilers. This control features an automatic reset with dual 120 volt switches for low water cut-off and alarm or electric water feeders. Its maximum pressure is 50 psi. Quick hook-up fittings allow for installation directly into gauge glass tappings (1/2" NPT). Blow down valve required.

Price: $609.06

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