Mcdonnell & Miller

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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  • RB-122E, Electronic, 120V Low Water Cut-Off - (Water) View Specs
    • SKU: 144676
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (139 Avail)

    $75.95 / each

    $218.85 / box
    3 x $72.95

     
  • WFE-24V, Uni-Match Universal Water Feeder (24V) View Specs
    • SKU: 169550
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (114 Avail)

    $189.95 / each

    $548.85 / box
    3 x $182.95

    Free Shipping - Boxes Only
  • FS251, General purpose flow switch w/ NEMA 1 enclosure (Replaces FS4-3) View Specs
    • SKU: 120611
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (83 Avail)

    $89.95 / each

    $260.55 / box
    3 x $86.85

     
  • FS254, General purpose flow switch w/ NEMA 4 enclosure (Replaces FS8-W) View Specs
    • SKU: 120610
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (60 Avail)

    $122.75 / each

    $355.35 / box
    3 x $118.45

    Free Shipping - Boxes Only
  • FS4-3, 1" General Purpose Flow Switch - Paddle Style View Specs
    • SKU: 114400
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (305 Avail)

    $91.95 / each

    $265.95 / box
    3 x $88.65

     
  • 67, Float Type Low Water Cut-off (Steam) View Specs
    • SKU: 149400
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (43 Avail)

    $216.95 / each

    $622.65 / box
    3 x $207.55

    Free Shipping - Boxes Only
  • RB-24E, Electronic, 24V Low Water Cut-Off - (Water) View Specs
    • SKU: 144692
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (76 Avail)

    $75.95 / each

    $218.85 / box
    3 x $72.95

     
  • 751P-MT-120, Electronic Manual Reset Low Water Cutoff w/ Probe(Water) View Specs
    • SKU: 176234
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (83 Avail)

    $149.25 / each

    $431.85 / box
    3 x $143.95

    Free Shipping - Boxes Only
  • 150S-HD, Head Assembly for 150 series (Snap Switch) View Specs
    • SKU: 173003
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (45 Avail)

    $425.95 / each

    $1,232.85 / box
    3 x $410.95

    Free Shipping
  • FS1, 1/2" Flow Switch View Specs
    • SKU: 113200
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (26 Avail)

    $171.95 / each

    $497.85 / box
    3 x $165.95

    Free Shipping - Boxes Only
  • 750-MT-120, Electronic Manual Reset Low Water Cutoff (Water) View Specs
    • SKU: 176207
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (33 Avail)

    $110.95 / each

    $320.85 / box
    3 x $106.95

    Free Shipping - Boxes Only
  • 14-B, Blow Down Valve-Ball Type for 47,247,67,70B Water Feeders View Specs
    • SKU: 310447
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (20 Avail)

    $67.95 / each

    $196.65 / box
    3 x $65.55

     
  • 150-14H, Gasket for 150 View Specs
    • SKU: 325500
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (416 Avail)

    $4.65 / each

    $13.35 / box
    3 x $4.45

     
  • FS5-3/4, 3/4" Flow Switch View Specs
    • SKU: 114760
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (21 Avail)

    $175.95 / each

    $509.25 / box
    3 x $169.75

    Free Shipping - Boxes Only
  • 47-2, Mechanical Water Feeder w/ #2 Switch (LWCO Function) View Specs
    • SKU: 132800
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (36 Avail)

    $524.95 / each

    $1,007.90 / box
    2 x $503.95

    Free Shipping
  • FS5-1, 1" Flow Switch View Specs
    • SKU: 114780
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (15 Avail)

    $175.95 / each

    $509.25 / box
    3 x $169.75

    Free Shipping - Boxes Only
  • CTRD-101, Cartridge and Strainer Kit, Model CTRD-101 View Specs
    • SKU: 310453
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (17 Avail)

    $102.85 / each

    $297.75 / box
    3 x $99.25

     
  • PSE-801-M-120, Electronic, 120V Low Water Cut-Off w/ Manual Reset (Steam) View Specs
    • SKU: 153601-LWCO
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (45 Avail)

    $165.95 / each

    $480.45 / box
    3 x $160.15

    Free Shipping - Boxes Only
  • 150S, Float Type, Combo LWCO & Pump Controller - (Steam) View Specs
    • SKU: 171702
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (32 Avail)

    $445.95 / each

    $856.30 / box
    2 x $428.15

    Free Shipping
  • PSE802-24, Electronic 24V Low Water Cutoff with Auto Reset (Steam) View Specs
    • SKU: 153927-LWCO
    • Brand: Mcdonnell & Miller
    In Stock!
    Ships in 24-48 Hrs (33 Avail)

    $139.95 / each

     

More about Mcdonnell & Miller

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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