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McDonnell & Miller

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Product Image of 158S-M-HD, Head Assembly for 158S Low Water Cutoff, w/ Manual Reset
158S-M-HD, Head Assembly for 158S Low Water Cutoff, w/ Manual Reset
SKU: 172821
McDonnell & Miller
SKU: 172821
Brand: McDonnell & Miller
$1,295.50 each
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Product Image of 157S-R-MD, Float Type, Combo LWCO & Pump Controller w/ Water Column, alternate tappings, maximum differential (Steam)
157S-R-MD, Float Type, Combo LWCO & Pump Controller w/ Water Column, alternate tappings, maximum differential (Steam)
SKU: 176222
McDonnell & Miller
SKU: 176222
Brand: McDonnell & Miller
$2,322.40 each
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Product Image of 260-1-1/2-30, Relief Valve 1-1/2 NPT, 30 psi (2.1 kg/cm2)
260-1-1/2-30, Relief Valve 1-1/2 NPT, 30 psi (2.1 kg/cm2)
SKU: 182625
McDonnell & Miller
SKU: 182625
Brand: McDonnell & Miller
$929.08 each
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Product Image of 260-1-1/2-50, Relief Valve 1-1/2 NPT, 50 psi (3.5 kg/cm2)
260-1-1/2-50, Relief Valve 1-1/2 NPT, 50 psi (3.5 kg/cm2)
SKU: 182925
McDonnell & Miller
SKU: 182925
Brand: McDonnell & Miller
$959.00 each
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Product Image of 250-3/4-100, Relief Valve 3/4" NPT, 100 psi (7 kg/cm2)
250-3/4-100, Relief Valve 3/4" NPT, 100 psi (7 kg/cm2)
SKU: 181725
McDonnell & Miller
SKU: 181725
Brand: McDonnell & Miller
$179.24 each
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Product Image of 250-1-15, Relief Valve 1" NPT, 15 psi (1 kg/cm2)
250-1-15, Relief Valve 1" NPT, 15 psi (1 kg/cm2)
SKU: 181920
McDonnell & Miller
SKU: 181920
Brand: McDonnell & Miller
$266.60 each
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Product Image of 157S-A-M, Float Type, Combo LWCO & Pump Controller w/ Water Column, w/ Alternate Tappings,w/ Manual reset (Steam)
157S-A-M, Float Type, Combo LWCO & Pump Controller w/ Water Column, w/ Alternate Tappings,w/ Manual reset (Steam)
SKU: 172811
McDonnell & Miller
SKU: 172811
Brand: McDonnell & Miller
$1,803.34 each
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Product Image of 159S-HD, Head Assembly for Combination Low Water Cutoff & Pump Controller w/ 2 SPST switches
159S-HD, Head Assembly for Combination Low Water Cutoff & Pump Controller w/ 2 SPST switches
SKU: 178902
McDonnell & Miller
SKU: 178902
Brand: McDonnell & Miller
$1,437.36 each
In Stock
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Product Image of 72" G-6-Ss Non-Teflon Ground Probe
72" G-6-Ss Non-Teflon Ground Probe
SKU: 179160
McDonnell & Miller
SKU: 179160
Brand: McDonnell & Miller
$72.62 each
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Product Image of 64-A-M, Float Type LWCO w/ Quick Hook Up, w/ Manual Reset
64-A-M, Float Type LWCO w/ Quick Hook Up, w/ Manual Reset
SKU: 143702
McDonnell & Miller
SKU: 143702
Brand: McDonnell & Miller
$931.25 each
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Product Image of FS4- 3J, 1" Flow Switch w/ BSPT connections
FS4- 3J, 1" Flow Switch w/ BSPT connections
SKU: 114610
McDonnell & Miller
SKU: 114610
Brand: McDonnell & Miller
$213.08 each
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Product Image of FS5-D-3/4, 3/4 Flow Switch w/2 SPDT switches
FS5-D-3/4, 3/4 Flow Switch w/2 SPDT switches
SKU: 114763
McDonnell & Miller
SKU: 114763
Brand: McDonnell & Miller
$406.44 each
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Product Image of FS4-3T2-1, 1" Flow Switch w/ NPT body (Medium Flow Rate)
FS4-3T2-1, 1" Flow Switch w/ NPT body (Medium Flow Rate)
SKU: 115200
McDonnell & Miller
SKU: 115200
Brand: McDonnell & Miller
$296.97 each
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Product Image of 42S-N, Combo Low Water Cut-Off - Pump Controller (Steam) w/ gauge glass connector
42S-N, Combo Low Water Cut-Off - Pump Controller (Steam) w/ gauge glass connector
SKU: 129802
McDonnell & Miller
SKU: 129802
Brand: McDonnell & Miller
$1,215.12 each
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Product Image of 51S-2-HD, Head Mechanism for Make-Up Water Feeder w/ LWCO Function
51S-2-HD, Head Mechanism for Make-Up Water Feeder w/ LWCO Function
SKU: 136200-MCDONNELL
McDonnell & Miller
SKU: 136200-MCDONNELL
Brand: McDonnell & Miller
$2,055.00 each
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Product Image of 193-D-7B, Combo Low Water Cut-Off & Pump Controller w/ #7B Switch w/ Alternate Tappings (Steam)
193-D-7B, Combo Low Water Cut-Off & Pump Controller w/ #7B Switch w/ Alternate Tappings (Steam)
SKU: 163903
McDonnell & Miller
SKU: 163903
Brand: McDonnell & Miller
$3,949.44 each
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Product Image of 269, Float Type Low Water Cut-off, 2-1/4" Insertion (Steam)
269, Float Type Low Water Cut-off, 2-1/4" Insertion (Steam)
SKU: 155200
McDonnell & Miller
SKU: 155200
Brand: McDonnell & Miller
$506.71 each
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Product Image of 93-M-HD, Head Mechanism for 93 & 193 Series Combination Low Water Cutoff/Pump Controllers
93-M-HD, Head Mechanism for 93 & 193 Series Combination Low Water Cutoff/Pump Controllers
SKU: 162600
McDonnell & Miller
SKU: 162600
Brand: McDonnell & Miller
$2,255.00 each
In Stock
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Product Image of AF1-S-122, Stainless Steel Paddle for Air Flow Switches
AF1-S-122, Stainless Steel Paddle for Air Flow Switches
SKU: 336050
McDonnell & Miller
SKU: 336050
Brand: McDonnell & Miller
$71.75 each
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Product Image of FS7-31, Replacement Snap Switch for Flow Switch
FS7-31, Replacement Snap Switch for Flow Switch
SKU: 307000
McDonnell & Miller
SKU: 307000
Brand: McDonnell & Miller
$191.36 each
In Stock
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Product Image of 27T-9, Nipple replacement for 27
27T-9, Nipple replacement for 27
SKU: 311900
McDonnell & Miller
SKU: 311900
Brand: McDonnell & Miller
$87.64 each
In Stock
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Product Image of 27T-13, Gasket replacement for 27
27T-13, Gasket replacement for 27
SKU: 312100
McDonnell & Miller
SKU: 312100
Brand: McDonnell & Miller
$11.94 each
In Stock
Get 9 by Mon, Oct 19
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Product Image of 421-30, Float Replacement less rod for 25A, 27W
421-30, Float Replacement less rod for 25A, 27W
SKU: 334100
McDonnell & Miller
SKU: 334100
Brand: McDonnell & Miller
$380.00 each
In Stock
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Product Image of FS7-4D, 1-1/4" Flow Switch w/2 SPDT
FS7-4D, 1-1/4" Flow Switch w/2 SPDT
SKU: 119750
McDonnell & Miller
SKU: 119750
Brand: McDonnell & Miller
$602.56 each
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Product Image of 51-S-2-M, Mechanical Water Feeder w/ no. 2 Switch (LWCO Function), w/ Manual Reset
51-S-2-M, Mechanical Water Feeder w/ no. 2 Switch (LWCO Function), w/ Manual Reset
SKU: 136000
McDonnell & Miller
SKU: 136000
Brand: McDonnell & Miller
$2,334.60 each
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Product Image of 53, Mechanical Water Feeder
53, Mechanical Water Feeder
SKU: 136900
McDonnell & Miller
SKU: 136900
Brand: McDonnell & Miller
$1,801.70 each
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Product Image of 53-B, Mechanical Water Feeder w/ Float Block
53-B, Mechanical Water Feeder w/ Float Block
SKU: 137400
McDonnell & Miller
SKU: 137400
Brand: McDonnell & Miller
$1,904.44 each
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Product Image of 53-2-HD, Head Replacement for Mechanical Water Feeder
53-2-HD, Head Replacement for Mechanical Water Feeder
SKU: 137300
McDonnell & Miller
SKU: 137300
Brand: McDonnell & Miller
$1,829.72 each
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Product Image of FS5-DS-1, 1" Flow Switch w/Stainless Steel body, 2 SPDT switches
FS5-DS-1, 1" Flow Switch w/Stainless Steel body, 2 SPDT switches
SKU: 114793
McDonnell & Miller
SKU: 114793
Brand: McDonnell & Miller
$1,310.60 each
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Product Image of FS4-3DS, 1" Flow Switch w/Stainless Steel Body and 2 SPDT switches
FS4-3DS, 1" Flow Switch w/Stainless Steel Body and 2 SPDT switches
SKU: 114642
McDonnell & Miller
SKU: 114642
Brand: McDonnell & Miller
$684.08 each
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Product Image of 193-A-7B-M, Combo Low Water Cut-Off & Pump Controller w/ Alternate Tappings,#7B Switch , w/ Manual Reset (Steam)
193-A-7B-M, Combo Low Water Cut-Off & Pump Controller w/ Alternate Tappings,#7B Switch , w/ Manual Reset (Steam)
SKU: 164600
McDonnell & Miller
SKU: 164600
Brand: McDonnell & Miller
$3,844.53 each
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Product Image of 194-7B-M, Combo Low Water Cut-Off and Pump Controllers w/ No. 7B Switch, w/ Manual Reset (Steam)
194-7B-M, Combo Low Water Cut-Off and Pump Controllers w/ No. 7B Switch, w/ Manual Reset (Steam)
SKU: 167300
McDonnell & Miller
SKU: 167300
Brand: McDonnell & Miller
$3,666.00 each
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Product Image of 157S-RL-M, Float Type, Combo LWCO & Pump Controller w/ Water Column, w/ Alternate Tappings and Manual Reset
157S-RL-M, Float Type, Combo LWCO & Pump Controller w/ Water Column, w/ Alternate Tappings and Manual Reset
SKU: 172815
McDonnell & Miller
SKU: 172815
Brand: McDonnell & Miller
$2,034.56 each
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Product Image of 157S-R-M, Float Type, Combo LWCO & Pump Controller w/ Water Column, w/ Alternate Tappings and Manual Reset
157S-R-M, Float Type, Combo LWCO & Pump Controller w/ Water Column, w/ Alternate Tappings and Manual Reset
SKU: 172817
McDonnell & Miller
SKU: 172817
Brand: McDonnell & Miller
$2,113.63 each
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Product Image of 150S-M-MD, Float Type, Combo LWCO & Pump Controller, w/ Manual Reset, w/ Maximum Differential (Steam)
150S-M-MD, Float Type, Combo LWCO & Pump Controller, w/ Manual Reset, w/ Maximum Differential (Steam)
SKU: 172807
McDonnell & Miller
SKU: 172807
Brand: McDonnell & Miller
$1,003.52 each
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Product Image of 158S, Combination Low Water Cutoff & Pump Controller w/ 2 SPDT switches
158S, Combination Low Water Cutoff & Pump Controller w/ 2 SPDT switches
SKU: 178402
McDonnell & Miller
SKU: 178402
Brand: McDonnell & Miller
$1,366.17 each
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Product Image of 159S, Combination Low Water Cutoff & Pump Controller w/ 2 SPST switches
159S, Combination Low Water Cutoff & Pump Controller w/ 2 SPST switches
SKU: 178802
McDonnell & Miller
SKU: 178802
Brand: McDonnell & Miller
$1,742.22 each
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Product Image of P-6-SS Teflon Coated Probe for RS Series Sensors (72")
P-6-SS Teflon Coated Probe for RS Series Sensors (72")
SKU: 179555
McDonnell & Miller
SKU: 179555
Brand: McDonnell & Miller
$123.58 each
In Stock
Get 1 by Mon, Oct 19
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Product Image of 47X-2, Mechanical Water Feeder w/ out Quick Hook Up Fittings, w/ No. 2 Switch
47X-2, Mechanical Water Feeder w/ out Quick Hook Up Fittings, w/ No. 2 Switch
SKU: 176212
McDonnell & Miller
SKU: 176212
Brand: McDonnell & Miller
$1,436.45 each
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Product Image of FS7-4SE, 1-1/4" Flow Switch w/ Stainless Steel Body, w/ NEMA 7 & 9 enclosure
FS7-4SE, 1-1/4" Flow Switch w/ Stainless Steel Body, w/ NEMA 7 & 9 enclosure
SKU: 120175
McDonnell & Miller
SKU: 120175
Brand: McDonnell & Miller
$1,081.06 each
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Product Image of 469, Float Type Low Water Cut-off, 1-3/16" Insertion (Steam)
469, Float Type Low Water Cut-off, 1-3/16" Insertion (Steam)
SKU: 155500
McDonnell & Miller
SKU: 155500
Brand: McDonnell & Miller
$580.00 each
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Product Image of 250-2-36, Relief Valve 2" NPT, 36 psi (2.5 kg/cm2)
250-2-36, Relief Valve 2" NPT, 36 psi (2.5 kg/cm2)
SKU: 183125
McDonnell & Miller
SKU: 183125
Brand: McDonnell & Miller
$1,103.29 each
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Product Image of 250-2-50, Relief Valve 2" NPT, 50 psi (3.5 kg/cm2)
250-2-50, Relief Valve 2" NPT, 50 psi (3.5 kg/cm2)
SKU: 183325
McDonnell & Miller
SKU: 183325
Brand: McDonnell & Miller
$1,103.29 each
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Product Image of 158S-MD, Combination Low Water Cutoff & Pump Controller w/ 2 SPDT switches,w/ Maximum Differential
158S-MD, Combination Low Water Cutoff & Pump Controller w/ 2 SPDT switches,w/ Maximum Differential
SKU: 178404
McDonnell & Miller
SKU: 178404
Brand: McDonnell & Miller
$1,411.69 each
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Product Image of S-4, Probe Spacer
S-4, Probe Spacer
SKU: 179529
McDonnell & Miller
SKU: 179529
Brand: McDonnell & Miller
$65.49 each
In Stock
Get 1 by Mon, Oct 19
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Product Image of FS1/6W-GSKT, Gasket for FS1-FS6W Flow Switch
FS1/6W-GSKT, Gasket for FS1-FS6W Flow Switch
SKU: 300311
McDonnell & Miller
SKU: 300311
Brand: McDonnell & Miller
$87.00 each
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Product Image of 21-3, Valve Bracket for 21
21-3, Valve Bracket for 21
SKU: 310600
McDonnell & Miller
SKU: 310600
Brand: McDonnell & Miller
$157.19 each
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Product Image of GSKT-FS254, Gasket for FS254
GSKT-FS254, Gasket for FS254
SKU: 310801
McDonnell & Miller
SKU: 310801
Brand: McDonnell & Miller
$12.52 each
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For over 80 years, McDonnell & Miller has been an industry leader in the engineering and manufacturing of flow switches, low water cut-offs, water feeders, etc. Trust McDonnell & Miller for everything you need to move water.
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