Product Search

    SEARCH NOW FOR ALL YOUR MCDONNELL& MILLER SOLUTIONS

    Radwell is here to supply you with all your plant floor needs.

    Sensors & Switches / Level Control

    Radwell is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.

    Filter Results
    Results 1-50 of 144.
    XYLEM SA-150-125

    XYLEM

    MCDONNELL & MILLER

    SA-150-125

    DISCONTINUED BY MANUFACTURER, MERCURY SWITCH, 150 SERIES, 2 WIRE, PUMP CONTROL & LOW WATER CUT-OFF
    ✓ IN STOCK!
    Buy Surplus As Low As $148.21
    $148.21
    XYLEM PSE-801-M-120

    XYLEM

    MCDONNELL & MILLER

    PSE-801-M-120

    DISCONTINUED BY MANUFACTURER, WATER CUT-OFF, PSE-800-M SERIES, LOW WATER CUT-OFF, 120 VOLTS, 15 PSI STEAM / 160 PSI HOT WATER, 250 DEGREE F, 7000 OHMS SENSITIVITY, SELF-CLEANING PROBE
    ✓ IN STOCK!
    Buy Surplus As Low As $250.79
    $250.79
    Repair Yours $300.00
    XYLEM 157S

    XYLEM

    MCDONNELL & MILLER

    157S

    HI PRESSURE LEVEL CONTROL, 173502
    ✓ IN STOCK!
    $2,249.35 Buy Surplus As Low As $1,349.61
    $1,349.61
    Repair Yours $1,099.00
    XYLEM 94

    XYLEM

    MCDONNELL & MILLER

    94

    (165200), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $3,309.82 Buy Surplus As Low As $1,985.89
    $1,985.89
    Repair Yours $1,616.00
    XYLEM 93-7B

    XYLEM

    MCDONNELL & MILLER

    93-7B

    COMBO LOW WATER CUT-OFF / PUMP CONTROLLER, 93 SERIES, W/POTENTIOMETER SWITCH, FOR USE WITH STEAM BOILER, 150 PSI, 115/230 VAC, 345 VA, (163000)
    ✓ IN STOCK!
    $3,805.17 Buy Surplus As Low As $2,283.10
    $2,283.10
    Repair Yours $1,753.00
    XYLEM PS-851-M-120

    XYLEM

    MCDONNELL & MILLER

    PS-851-M-120

    DISCONTINUED BY MANUFACTURER, CONTROL LOW WATER CUT-OFF, 120/240VAC, 160PSI, 250DEG
    ✓ IN STOCK!
    Buy Surplus As Low As $315.21
    $315.21
    Repair Yours $300.00
    XYLEM 150S

    XYLEM

    MCDONNELL & MILLER

    150S

    FLOAT CHAMBER, FOR HIGH PRESSURE LEVEL CONTROL, 150-HD, (171702)
    ✓ IN STOCK!
    $1,717.58 Buy Surplus As Low As $1,030.55
    $1,030.55
    Repair Yours $840.00
    XYLEM 193-A-M

    XYLEM

    MCDONNELL & MILLER

    193-A-M

    (164200), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $3,143.00 Buy Surplus As Low As $2,389.00
    $2,389.00
    Repair Yours $1,566.00
    XYLEM 93

    XYLEM

    MCDONNELL & MILLER

    93

    (162300), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $1,730.79 Buy Surplus As Low As $1,038.47
    $1,038.47
    Repair Yours $1,021.77
    XYLEM 64

    XYLEM

    MCDONNELL & MILLER

    64

    LOW WATER CUT-OFF, MAXIMUM BOILER PRESSURE 50 PSI, ADJUSTABLE BX OUTLET, HEAVY DUTY, VALVE, 143600, 1 INCH/ 25 MM NPT
    $852.49 Buy Surplus As Low As $511.49
    $511.49
    Repair Yours $436.00
    XYLEM FS254

    XYLEM

    MCDONNELL & MILLER

    FS254

    LIQUID FLOW SWITCH, GENERAL PURPOSE, WITH NEMA 4 ENCLOSURE, 1" NPT, SPDT SNAP SWITCH 1"/2"/3" AND 6" STAINLESS STEEL PADDLES
    ✓ IN STOCK!
    $391.25 Buy Surplus As Low As $297.35
    $297.35
    Repair Yours $300.00
    XYLEM PCH-G-A-1

    XYLEM

    MCDONNELL & MILLER

    PCH-G-A-1

    CONTROL GENERAL PURPOSE LIQUID LEVEL 120VAC 60HZ
    ✓ IN STOCK!
    $186.00 Buy Surplus As Low As $73.49
    $73.49
    Repair Yours $300.00
    XYLEM 27-W

    XYLEM

    MCDONNELL & MILLER

    27-W

    (127200), LIQUID LEVEL CONTROL
    ✓ IN STOCK!
    $2,849.00 Buy Surplus As Low As $1,710.00
    $1,710.00
    Repair Yours $1,420.00
    XYLEM 194-7B

    XYLEM

    MCDONNELL & MILLER

    194-7B

    (167200), HI PRESSURE LEVEL CONTROL, PROPORTIONING SWITCH, FOR COMBINATION LOW-WATER CUT-OFF & PUMP CONTROLLER
    ✓ IN STOCK!
    $5,077.95 Buy Surplus As Low As $3,046.77
    $3,046.77
    Repair Yours $2,478.00
    XYLEM 194

    XYLEM

    MCDONNELL & MILLER

    194

    HI PRESSURE LEVEL CONTROL, LOW WATER CUT OFF, PUMP CONTROLLER, NO 5 SWITCH INCLUDED, 1IN NPT, (166600)
    ✓ IN STOCK!
    $3,805.17 Buy Surplus As Low As $2,283.10
    $2,283.10
    Repair Yours $1,857.00
    XYLEM 369

    XYLEM

    MCDONNELL & MILLER

    369

    SENSOR, 2 1/2" NPT, 1 3/4" INSERTION LENGTH, 20 PSI, AUTO RESET MECHANICAL LOW WATER CUT OFF FOR STEAM BOILERS, PART NUMBER 155300
    ✓ IN STOCK!
    $740.02 Buy Surplus As Low As $444.01
    $444.01
    Repair Yours $335.00
    XYLEM RS-2-BR-1

    XYLEM

    MCDONNELL & MILLER

    RS-2-BR-1

    REMOTE SENSOR, 2 LEVELS, NEMA 4X ENCLOSURE, MAXIMUM TEMPERATURE 406 DEG. F (208 DEG. C), MAXIMUM PRESSURE 250 PSIG (17.6 KG/CM), (179525)
    ✓ IN STOCK!
    $827.09 Buy Surplus As Low As $486.82
    $486.82
    Repair Yours $401.00
    XYLEM 94-M

    XYLEM

    MCDONNELL & MILLER

    94-M

    (165900), HI PRESSURE LEVEL CONTROL, BLACK
    ✓ IN STOCK!
    $3,309.82 Buy Surplus As Low As $1,985.89
    $1,985.89
    Repair Yours $1,456.00
    XYLEM FPC-1000

    XYLEM

    MCDONNELL & MILLER

    FPC-1000

    ELECTRONIC LOW WATER CUT OFF LWCO WITHOUT PROBE (144704)
    ✓ IN STOCK!
    $308.45 Buy Surplus As Low As $174.73
    $174.73
    Repair Yours $200.00
    XYLEM RB-24SE

    XYLEM

    MCDONNELL & MILLER

    RB-24SE

    LOW WATER CUT-OFF, CONNECTION SIZE: 3/4", CONTROL CONNECTION: NPT, MAX WATER PRESSURE: 160 PSI, MAX WATER TEMP: 250F, AUTOMATIC
    ✓ IN STOCK!
    $223.42 Buy Surplus As Low As $134.05
    $134.05
    Repair Yours $200.00
    XYLEM 6M

    XYLEM

    MCDONNELL & MILLER

    6M

    DISCONTINUED BY MANUFACTOR, SWITCH, REPLACEMENT PART, MANUAL RESET LOW WATER CUT-OFF, FOR MCDONNELL 91, 92, 93, 94 SERIES CONTROLLERS
    ✓ IN STOCK!
    Buy Surplus As Low As $208.23
    $208.23
    Repair Yours $300.00
    XYLEM SA-150-124

    XYLEM

    MCDONNELL & MILLER

    SA-150-124

    DISCONTINUED BY MANUFACTURER, MERCURY SWITCH, 6INCH WIRE
    ✓ IN STOCK!
    Buy Surplus As Low As $241.00
    $241.00
    XYLEM 193-B-7B

    XYLEM

    MCDONNELL & MILLER

    193-B-7B

    (164700), HI PRESSURE LEVEL CONTROL, 7B SWITCH, 150 PSI, AUTOMATIC RESET, W/ WATER COLUMN ALTERNATE TAPPINGS
    ✓ IN STOCK!
    $3,791.27 Buy Surplus As Low As $2,274.76
    $2,274.76
    Repair Yours $1,827.00
    XYLEM 157S-RL

    XYLEM

    MCDONNELL & MILLER

    157S-RL

    (176902), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $2,257.19 Buy Surplus As Low As $1,354.31
    $1,354.31
    Repair Yours $1,245.00
    XYLEM 157S-RD-MD

    XYLEM

    MCDONNELL & MILLER

    157S-RD-MD

    (176802), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $2,479.00 Buy Surplus As Low As $1,488.00
    $1,488.00
    Repair Yours $1,236.00
    XYLEM 150S-M

    XYLEM

    MCDONNELL & MILLER

    150S-M

    (172806), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $1,515.60 Buy Surplus As Low As $1,011.00
    $1,011.00
    Repair Yours $840.00
    XYLEM 150S-B-M

    XYLEM

    MCDONNELL & MILLER

    150S-B-M

    (172803), HI PRESS LEVEL CONTROL
    ✓ IN STOCK!
    $3,644.12 Buy Surplus As Low As $2,186.47
    $2,186.47
    Repair Yours $893.00
    XYLEM 752P-MT-U-24

    XYLEM

    MCDONNELL & MILLER

    752P-MT-U-24

    752P-MT-U-24 LWCO - 24V W/EXT. BARREL PROBE (U)
    $433.00 Buy Surplus As Low As $260.00
    $260.00
    Repair Yours $300.00
    XYLEM 157S-A-M

    XYLEM

    MCDONNELL & MILLER

    157S-A-M

    (172811), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $2,130.00 Buy Surplus As Low As $1,278.00
    $1,278.00
    Repair Yours $1,061.00
    XYLEM 94-7B

    XYLEM

    MCDONNELL & MILLER

    94-7B

    (166300), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $4,510.82 Buy Surplus As Low As $2,706.49
    $2,706.49
    Repair Yours $2,202.00
    XYLEM 93-7B-M

    XYLEM

    MCDONNELL & MILLER

    93-7B-M

    (163100), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $3,698.00 Buy Surplus As Low As $2,318.83
    $2,318.83
    Repair Yours $1,796.00
    XYLEM 750-MT-24

    XYLEM

    MCDONNELL & MILLER

    750-MT-24

    750-MT-24 LWCO - 24V MANUAL RESET
    $291.00 Buy Surplus As Low As $175.00
    $175.00
    Repair Yours $300.00
    XYLEM RB-24SE-A

    XYLEM

    MCDONNELL & MILLER

    RB-24SE-A

    RB-24SE-A RESIDENTIAL LOW WATER CUT-OFF
    ✓ IN STOCK!
    $232.00 Buy Surplus As Low As $140.00
    $140.00
    Repair Yours $200.00
    XYLEM 150S-M HI

    XYLEM

    MCDONNELL & MILLER

    150S-M HI

    150S-M HI PRESSURE LEVEL CNTRL
    $1,387.00 Buy Surplus As Low As $833.00
    $833.00
    Repair Yours $692.00
    XYLEM 194-A-7B

    XYLEM

    MCDONNELL & MILLER

    194-A-7B

    (167100), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $5,077.95 Buy Surplus As Low As $3,046.77
    $3,046.77
    Repair Yours $2,478.00
    XYLEM 193-B

    XYLEM

    MCDONNELL & MILLER

    193-B

    (163600), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $3,196.00 Buy Surplus As Low As $1,956.78
    $1,956.78
    Repair Yours $1,592.00
    XYLEM 193A-7BM

    XYLEM

    MCDONNELL & MILLER

    193A-7BM

    (164600), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $4,265.00 Buy Surplus As Low As $2,559.00
    $2,559.00
    Repair Yours $2,124.00
    XYLEM 193-A-7B

    XYLEM

    MCDONNELL & MILLER

    193-A-7B

    (164500), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $4,350.00 Buy Surplus As Low As $2,610.00
    $2,610.00
    Repair Yours $2,167.00
    XYLEM 159S

    XYLEM

    MCDONNELL & MILLER

    159S

    (178802), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $1,951.00 Buy Surplus As Low As $1,171.00
    $1,171.00
    Repair Yours $972.00
    XYLEM 157S-R

    XYLEM

    MCDONNELL & MILLER

    157S-R

    (176220), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $2,037.19 Buy Surplus As Low As $1,222.31
    $1,222.31
    Repair Yours $818.16
    XYLEM RB-24SE-L

    XYLEM

    MCDONNELL & MILLER

    RB-24SE-L

    24V RESIDENTIAL LOW WATER CUT OFF W/BURNER CONTROL HARNESS 144726 REPLACES 14469
    ✓ IN STOCK!
    $234.55 Buy Surplus As Low As $140.73
    $140.73
    Repair Yours $200.00
    XYLEM 750-HW-MT-120

    XYLEM

    MCDONNELL & MILLER

    750-HW-MT-120

    750-HW-MT-120 LOW WATER CUT-OFF
    ✓ IN STOCK!
    $351.99 Buy Surplus As Low As $211.19
    $211.19
    Repair Yours $200.00
    XYLEM 193-A

    XYLEM

    MCDONNELL & MILLER

    193-A

    (163500), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $3,304.35 Buy Surplus As Low As $1,982.61
    $1,982.61
    Repair Yours $1,531.00
    XYLEM 193-7BM

    XYLEM

    MCDONNELL & MILLER

    193-7BM

    (164525), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $4,265.00 Buy Surplus As Low As $2,559.00
    $2,559.00
    Repair Yours $2,124.00
    XYLEM 157S-M

    XYLEM

    MCDONNELL & MILLER

    157S-M

    (172817), HI PRESSURE LEVEL CONTROL
    ✓ IN STOCK!
    $2,249.35 Buy Surplus As Low As $1,349.61
    $1,349.61
    Repair Yours $1,099.00
    XYLEM PSE-801-M-U-120

    XYLEM

    MCDONNELL & MILLER

    PSE-801-M-U-120

    (153603), CONTROL UNIT, W/EXTENDED BARRELL, USE IN STEAM BOILERS, 120V, MANUAL RESET, LED INDICATOR, 15PSI PRESSURE
    $456.00 Buy Surplus As Low As $274.00
    $274.00
    Repair Yours $300.00
    XYLEM PS-851-24

    XYLEM

    MCDONNELL & MILLER

    PS-851-24

    PS850M-24 W/MAN RESET 153892
    $61.24 Buy Surplus As Low As $36.74
    $36.74
    XYLEM PCH-G-A-2

    XYLEM

    MCDONNELL & MILLER

    PCH-G-A-2

    DISCONTINUED BY MANUFACTURER, LIQUID LEVEL CONTROL, PCH SERIES, DUAL LEVEL TYPE, 120 VAC SUPPLY, 125V PROBE VOLTAGE, 4 K-OHM LIQUID SENSITIVITY LIMIT
    Buy Surplus As Low As $210.00
    $210.00
    Repair Yours $300.00
    XYLEM PSE-802-U-24

    XYLEM

    MCDONNELL & MILLER

    PSE-802-U-24

    PROBE CONTROL, 24VAC, AUTO RESET, LOW WATER CUT OFF FOR STEAM BOILERS, W/ TEST SWITCH AND EXTENDED BARREL PROBE (PART NUMBER 153928), REPLACES PS-802-U-24
    $417.00 Buy Surplus As Low As $251.00
    $251.00
    Repair Yours $300.00
    XYLEM 751P-MT-120

    XYLEM

    MCDONNELL & MILLER

    751P-MT-120

    DISCONTINUED BY MANUFACTURER, (176234) PROBE CONTROL LWCO, MANUAL RESET
    Buy Surplus As Low As $226.34
    $226.34
    Repair Yours $300.00
    Next
    1 2 3