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  1. McDonnell & Miller 144692 Model RB-24E - LWCO Probe
    McDonnell & Miller 144692 Model RB-24E - LWCO Probe
    List Price $215.00 $167.65 / each
    SKU: MH1174A
    Ships within 2 weeks
    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. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 144692
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    List Price $215.00 $167.65 / each
  2. McDonnell & Miller 144693 Model RB-24ES - LWCO Probe
    McDonnell & Miller 144693 Model RB-24ES - LWCO Probe
    List Price $225.00 $175.44 / each
    SKU: MH1174B
    Ships within 2 weeks
    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. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 144693
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    List Price $225.00 $175.44 / each
  3. McDonnell and Miller 354107 model EA-157-L long probe.
    McDonnell & Miller EA-157-L 3" Long Electrode for Series 157S-RBP (354107)
    List Price $325.00 $253.25 / each
    SKU: MI1176
    Ships within 4 weeks
    McDonnell & Miller model number EA-157-L is a long electrode conductance probe for model number 157-RBP and 157S-RBP controls. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 354107
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    List Price $325.00 $253.25 / each
  4. McDonnell Miller 354106 model EA-157-S short electrode probe.
    McDonnell & Miller EA-157-S 2-1/4" Short Electrode for Series 157S-RBP (354106)
    List Price $325.00 $253.25 / each
    SKU: MI1176A
    3 in stock
    McDonnell & Miller model number EA-157-S is a short electrode conductance probe for model number 157-RBP and 157S-RBP controls. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 354106
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    List Price $325.00 $253.25 / each
  5. McDonnell & Miller 354401 Model EA-RS - Electrode Probe
    McDonnell & Miller 354401 Model EA-RS - Electrode Probe
    List Price $225.00 $175.44 / each
    SKU: MI1176B
    7 in stock
    McDonnell & Miller model number EA-RS is an electrode conductance probe for model number RS-1-BR-1 and RS2-BR-1 remote sensors. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 354401
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    List Price $225.00 $175.44 / each
  6. McDonnell & Miller 354083 Model PA-RB-122 - Probe
    McDonnell & Miller 354083 Model PA-RB-122 - Probe
    List Price $133.00 $103.93 / each
    SKU: MI1499
    Ships within 2 weeks
    McDonnell & Miller model number PA-RB-122 is a probe for model number RB-120 low water cut-offs. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 354083
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    List Price $133.00 $103.93 / each
  7. Hydrolevel EL1214 - 3/4" NPT Standard Probe
    Hydrolevel EL1214 - 3/4" NPT Standard Probe
    List Price $107.22 $79.43 / each
    SKU: HY1020
    5 in stock
    Hydrolevel standard 3/4" NPT probe measuring 2-7/8" long. Learn More
    • Manufacturer : Hydrolevel
    • Part Number : EL1214
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    List Price $107.22 $79.43 / each
  8. Hydrolevel EL1214-P - 3/4" NPT Probe w/Long Nut
    Hydrolevel EL1214-P - 3/4" NPT Probe w/Long Nut
    List Price $135.14 $100.11 / each
    SKU: HY1021
    4 in stock
    Hydrolevel 3/4" NPT probe with a longer nut (1-11/16") for thicker boiler jackets. Learn More
    • Manufacturer : Hydrolevel
    • Part Number : EL1214-P
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    List Price $135.14 $100.11 / each
  9. Hydrolevel EL1214-SV - 3/4" NPT Short ID Probe
    Hydrolevel EL1214-SV - 3/4" NPT Short ID Probe
    List Price $107.22 $79.43 / each
    SKU: HY1023
    Ships within 1 business days
    Hydrolevel 3/4" NPT probe with short inside dimension that is designed for installation in standard reducing tee and short clearance installations. Learn More
    • Manufacturer : Hydrolevel
    • Part Number : EL1214-SV
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    List Price $107.22 $79.43 / each
  10. McDonnell & Miller 179156 - G-2-SS 24" Grounding Probe
    McDonnell & Miller 179156 - G-2-SS 24" Grounding Probe
    $0.00
    SKU: MI1499H
    39 in stock
    McDonnell & Miller 24" stainless steel grounding probe rod for remote sensors. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 179156
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    $0.00
  11. McDonnell & Miller 179157 - G-3-SS 36" Grounding Probe
    McDonnell & Miller 179157 - G-3-SS 36" Grounding Probe
    $0.00
    SKU: MI1499K
    Ships within 2 weeks
    McDonnell & Miller 36" stainless steel grounding probe rod for remote sensors. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 179157
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    $0.00
  12. McDonnell & Miller 179158 - G-4-SS 48" Grounding Probe
    McDonnell & Miller 179158 - G-4-SS 48" Grounding Probe
    $0.00
    SKU: MI1499M
    2 in stock
    McDonnell & Miller 48" stainless steel grounding probe rod for remote sensors. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 179158
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    $0.00
  13. McDonnell & Miller 179159 - G-5-SS 60" Grounding Probe
    McDonnell & Miller 179159 - G-5-SS 60" Grounding Probe
    $0.00
    SKU: MI1499N
    Ships within 2 weeks
    McDonnell & Miller 60" stainless steel grounding probe rod for remote sensors. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 179159
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    $0.00
  14. McDonnell & Miller 179160 - G-6-SS 72" Grounding Probe
    McDonnell & Miller 179160 - G-6-SS 72" Grounding Probe
    $0.00
    SKU: MI1499P
    1 in stock
    McDonnell & Miller 72" stainless steel grounding probe rod for remote sensors. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 179160
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    $0.00
  15. McDonnell & Miller 153605 Model RBT-3000 - LWCO Probe
    McDonnell & Miller 153605 Model RBT-3000 - LWCO Probe
    List Price $340.00 $265.10 / each
    SKU: MH1174T
    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. Learn More
    • Manufacturer : McDonnell & Miller
    • Part Number : 153605
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    This item is obsolete. Please visit the item's page to view 0 repair parts and 0 alternate items.
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Shopping Options
Category
Discontinued
  1. No 14items
  2. Yes 1item
Control Connection
  1. NPT 2items
Brand
  1. McDonnell & Miller 12items
  2. Hydrolevel 3items
M&M Series
  1. Series 157S-RBP 2items
Control Reset
  1. Automatic 2items
Max Water Temp
  1. 250°F 2items
Max Water Pressure
  1. 160 psi 2items
Max Steam Pressure
  1. N/A 2items
Voltage
  1. 24V 2items
Connection Size
  1. 3/4" 2items
Application
  1. Hot Water Boilers 2items
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