Category Products

McDonnell & Miller model number PS-851-120 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, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 160 psi. It is a compact unit with 3/4" MIP connections and a threaded 1-5/8" probe.

This item is obsolete. Please visit the item's page to view 1 repair part and 1 alternate item.

McDonnell & Miller model number PS-851-M-U-120 is an electronic low water cut-off control unit, with extended barrel probe, for use on hot water boilers. This cut-off unit is 120 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 160 psi. It is a compact unit with 3/4" MIP connections and a threaded 2-5/8" probe.

This item is obsolete. Please visit the item's page to view 1 repair part and 1 alternate item.

McDonnell & Miller model number PS-851-SP-120 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, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 160 psi. It is a compact unit with 3/4" MIP connections and a short probe.

This item is obsolete. Please visit the item's page to view 1 repair part and 1 alternate item.

McDonnell & Miller model number PS-851-SP-M-120 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 a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 160 psi. It is a compact unit with 3/4" MIP connections and a short probe.

This item is obsolete. Please visit the item's page to view 1 repair part and 1 alternate item.

McDonnell & Miller model number PS-852-SP-24 is an electronic low water cut-off control unit, with probe, for use on hot water boilers. This cut-off unit is 24 volt and features an automatic reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 160 psi. It is a compact unit with 3/4" MIP connections and a short probe.

This item is obsolete. Please visit the item's page to view 1 repair part and 1 alternate item.

McDonnell & Miller model number PS-852-SP-M-24 is an electronic low water cut-off control unit, with probe, for use on hot water boilers. This cut-off unit is 24 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 160 psi. It is a compact unit with 3/4" MIP connections and a short probe.

This item is obsolete. Please visit the item's page to view 1 repair part and 1 alternate item.

  • SKU: MH1172
  • 2 in stock
  • Ships within 10 business days

McDonnell & Miller model number PSE-801-120 is an electronic low water cut-off control unit, with probe, for use on steam boilers. This cut-off unit is 120 volt and features an automatic reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $199.51
Regular Price: $216.14

  • SKU: MH1172A
  • 3 in stock
  • Ships within 10 business days

McDonnell & Miller model number PS-801-M-24 is an electronic low water cut-off control unit, with probe, for use on steam boilers. This cut-off unit is 120 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $222.53
Regular Price: $241.07

  • SKU: MH1172B
  • 1 in stock
  • Ships within 10 business days

McDonnell & Miller model number PS-801-U-24 is an electronic low water cut-off control unit, with extended barrel probe, for use on steam boilers. This cut-off unit is 120 volt and features an automatic reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $214.85
Regular Price: $232.75

  • SKU: MH1172C
  • Ships within 10 business days

McDonnell & Miller model number PS-801-M-U-24 is an electronic low water cut-off control unit, with extended barrel probe, for use on steam boilers. This cut-off unit is 120 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $230.20
Regular Price: $249.39

  • SKU: MH1173
  • 4 in stock
  • Ships within 10 business days

McDonnell & Miller model number PSE-802-24 is an electronic low water cut-off control unit, with probe, for use on steam boilers. This cut-off unit is 24 volt and features an automatic reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $199.51
Regular Price: $216.14

  • SKU: MH1173A
  • Ships within 10 business days

McDonnell & Miller model number PSE-802M-24 is an electronic low water cut-off control unit, with probe, for use on steam boilers. This cut-off unit is 24 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $222.53
Regular Price: $241.07

  • SKU: MH1173B
  • 4 in stock
  • Ships within 10 business days

McDonnell & Miller model number PS-802-U-24 is an electronic low water cut-off control unit, with extended barrel probe, for use on steam boilers. This cut-off unit is 24 volt and features an automatic reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $214.85
Regular Price: $232.75

  • SKU: MH1173C
  • 4 in stock
  • Ships within 10 business days

McDonnell & Miller model number PS-802-RX2-24 is an electronic low water cut-off control unit, with remote sensor, for use on steam boilers. This cut-off unit is 24 volt and features an automatic reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 1/2" MIP connections.

Online Price: $207.17
Regular Price: $224.44

  • SKU: MH1173D
  • Ships within 10 business days

McDonnell & Miller model number PS-802-M-U-24 is an electronic low water cut-off control unit, with extended barrel probe, for use on steam boilers. This cut-off unit is 24 volt and features a manual reset, test switch, and LED low water indicator light. Its maximum water temperature is 250°F and pressure is 15 psi. It is a compact unit with 3/4" MIP connections and a 2-1/8" probe.

Online Price: $230.20
Regular Price: $249.39

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