Low Water Cut-Offs
Combination LWCO & Pump Controllers
List Price $1,265.00 $899.96 / eachSKU: MH10221 in stockMcDonnell & 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. Explore More- Manufacturer : McDonnell & Miller
- Part Number : 129302
List Price $1,265.00 $899.96 / each- List Price $1,740.00 $1,237.89 / eachSKU: MH1023Ships within 2 business daysMcDonnell & 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. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 129702
List Price $1,740.00 $1,237.89 / each - List Price $1,460.00 $1,038.69 / eachSKU: MH1023AShips within 2 business daysMcDonnell & 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. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 129802
List Price $1,460.00 $1,038.69 / each - List Price $2,430.00 $1,680.75 / eachSKU: MH10743 in stockMcDonnell & Miller 162500 model 93-M is a combination float-operated low water cut-off and pump controller with manual reset and 1" NPT connections for steam boilers rated up to 150 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 162500
List Price $2,430.00 $1,680.75 / each - List Price $2,230.00 $1,542.42 / eachSKU: MH10753 in stockMcDonnell & Miller model 93 is a combination float-operated low water cut-off and pump controller with 1" FIP tapped connections for steam boilers with a separate water column. This control features an automatic reset with standard number 5 single pole single throw switches. Its maximum pressure is 150 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 162300
List Price $2,230.00 $1,542.42 / each - List Price $3,150.00 $2,178.75 / eachSKU: MH10761 in stockMcDonnell & Miller 93-7B combination low water cut-off and pump controller with automatic reset switch and 1" NPT pipe connections for steam boilers rated up to 150 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 163000
List Price $3,150.00 $2,178.75 / each - List Price $3,250.00 $2,247.92 / eachSKU: MH1077Ships within 8 weeksMcDonnell & Miller model number 93-7BM is a combination float-operated low water cut-off and pump controller with 1" FIP tapped connections for steam boilers with a separate water column for low water cut-off and pump control, as well as, proportional control for constant boiler water level. This control features a manual reset with optional number 7BM single pole single throw switches. Its maximum pressure is 150 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 163100
List Price $3,250.00 $2,247.92 / each - List Price $2,740.00 $1,898.97 / eachSKU: MH1078Ships within 2 weeksMcDonnell & Miller model number 94A is a combination float-operated low water cut-off and pump controller with 1-1/4" FIP tapped connections for steam boilers with a separate water column. This control features an automatic reset with standard number 5 single pole single throw switches. Its maximum pressure is 250 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 165500
List Price $2,740.00 $1,898.97 / each - List Price $2,740.00 $1,895.17 / eachSKU: MH10795 in stockMcDonnell & Miller model number 94M is a combination float-operated low water cut-off and pump controller with 1-1/4" FIP tapped connections for steam boilers with a separate water column. This control features a manual reset with standard number 5 single pole single throw switches. Its maximum pressure is 250 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 165900
List Price $2,740.00 $1,895.17 / each - List Price $2,740.00 $1,895.17 / eachSKU: MH10803 in stockMcDonnell & Miller model number 94 is a combination float-operated low water cut-off and pump controller with 1-1/4" FIP tapped connections for steam boilers with a separate water column. This control features an automatic reset with standard number 5 single pole single throw switches. Its maximum pressure is 250 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 165200
List Price $2,740.00 $1,895.17 / each - List Price $3,735.00 $2,583.38 / eachSKU: MH10813 in stockMcDonnell & Miller model number 94-7B is a combination float-operated low water cut-off and pump controller with 1-1/4" FIP tapped connections for steam boilers with a separate water column. This control features an automatic reset with optional number 7B single pole single throw switches. Its maximum pressure is 250 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 166300
List Price $3,735.00 $2,583.38 / each - List Price $2,740.00 $1,895.17 / eachSKU: MH1082Ships within 2 weeksMcDonnell & Miller model number 94AM is a combination float-operated low water cut-off and pump controller with 1-1/4" FIP tapped connections for steam boilers with a separate water column. This control features a manual reset with standard number 5 single pole single throw switches. Its maximum pressure is 250 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 165800
List Price $2,740.00 $1,895.17 / each - List Price $3,735.00 $2,583.38 / eachSKU: MH1083Ships within 9 weeksMcDonnell & Miller model number 94A-7B is a combination float-operated low water cut-off and pump controller with 1-1/4" FIP tapped connections for steam boilers with a separate water column. This control features an automatic reset with optional number 7B single pole single throw switches. Its maximum pressure is 250 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 165700
List Price $3,735.00 $2,583.38 / each - List Price $1,400.00 $996.00 / eachSKU: MH1094A3 in stockMcDonnell & Miller model number 150S-M-MD is a combination float-operated low water cut-off and pump controller with maximum differential operation, which prevents nuisance burner shut-down in low pressure applications, for steam boilers with a separate water column. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 172807
List Price $1,400.00 $996.00 / each - List Price $1,400.00 $885.00 / eachSKU: MH10956 in stockMcDonnell & Miller 171702 model 150S replacement low water cut-off & pump controller with snap-action switch assembly for commercial and industrial low or high-pressure steam boiler applications. This float-type, combination low water cut-off and pump controller has 1" NPT connections and a maximum pressure of 150 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 171702
List Price $1,400.00 $885.00 / each - List Price $1,400.00 $996.00 / eachSKU: MH10963 in stockMcDonnell & Miller model number 150S-MD is a combination float-operated low water cut-off and pump controller with maximum differential operation, which prevents nuisance burner shut-down in low pressure applications, for steam boilers with a separate water column. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 171802
List Price $1,400.00 $996.00 / each - List Price $1,400.00 $996.00 / eachSKU: MH10978 in stockMcDonnell & Miller 172806 model 150S-M replacement low water cut-off & pump controller with snap-action switch assembly with manual reset for commercial and industrial low or high-pressure steam boiler applications. This float-type, combination low water cut-off and pump controller has 1" NPT connections and a maximum pressure of 150 psi. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 172806
List Price $1,400.00 $996.00 / each - List Price $1,835.00 $1,305.47 / eachSKU: MH1099BShips within 8 weeksMcDonnell & Miller 172813 model 157S-M-MD combination low water cut-off and pump controller with manual reset and maximum differential operation. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 172813
List Price $1,835.00 $1,305.47 / each - List Price $1,835.00 $1,269.21 / eachSKU: MH11009 in stockMcDonnell & Miller model number 157S is a combination float-operated low water cut-off and pump controller for steam boilers with an integral water column. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 173502
List Price $1,835.00 $1,269.21 / each - List Price $1,835.00 $1,305.47 / eachSKU: MH1100BShips within 8 weeksMcDonnell & Miller model 157S-A-M combination low water cut-off and pump controller with manual reset (SWA-150S-M Switch) and alternate tappings for steam boilers with pressures up to 150 psi. This 'A' model has 1-1/4" NPT connections with 3/4" NPT column connections for the water gauge valves and compression gauge cocks. Explore More
- Manufacturer : McDonnell & Miller
- Part Number : 172811
List Price $1,835.00 $1,305.47 / each
