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  • Mercury Relays
    • Relays or Contactors
      • Single Pole Relays | Contactors
        • Single Pole 30 AMP
        • Single Pole 35 AMP
        • Single Pole 35 AMP T-Top
        • Single Pole 60 AMP
        • Single Pole 100 AMP
      • Two Pole Relays | Contactors
        • Two Pole 30 AMP
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        • Two Pole 35 AMP T-Top
        • Two Pole 60 AMP
        • Two Pole 100 AMP
      • Three Pole Relays | Contactors
        • Three Pole 30 AMP
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        • Three Pole 60 AMP
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      • Four Pole Relays | Contactors
        • Four Pole 35 AMP
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    • Traffic Control Relay
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  • Solid State
    • Single Pole SSR Series
      • SS20 Series
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    • 2 & 3 Pole Series
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    • Switching Power Supply
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  • Misc. Relays
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  • Switches
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    • Mercury Hg Floats
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      • Pump Duty Floats
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      • High Amp - 25 AMP Floats
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    • Avocado Float Switches
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      • Avocado High Amp - 25 AMP Floats
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      • 1/2 HP 13 AMP Float
      • 1 HP & 2 HP 15 AMP Float
    • Mercury Sewage Floats
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      • Opti-Float® FAQ
    • Stainless Steel Floats
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      • Weight Kits
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      • Switching Cord Sets
    • Ultrasonic Leveling and Accessories
      • Ultrasonic Level Sensor
      • Ultrasonic Level Transmitter
      • Ultrasonic Level Accessories
    • Pressure Transducers
      • Sewage & Sludge
      • Ground Water & Wells
    • Pressure Transmitter
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    • Tank Alarms (High Water Alarm)
      • Indoor Tank Alarm (High Water Alarm)
      • Outdoor Tank Alarm (High Water Alarm)
      • Installation Guide
    • Pump Controllers
    • Control Panels
    • Installation Guide
  • Pumps & Basins
    • Custom Basin Packages
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      • Base Elbow Rail Systems
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      • Miscellaneous Accessories
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      • Recessed Impeller - 3 & 4 Inch Discharge
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      • 2-Vane Enclosed Impeller - 4 to 14 Inch Dis.
      • Accessories
    • Effluent, Sump & Sewage
      • Effluent Pumps
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  • Pump Repair
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MDI Inc.
P.O. Box 710
25028 U.S. 12 East
Edwardsburg, Michigan 49112
Phone: (269) 663-8574
Toll Free US and Canada: (800) 634-4077
Fax: (269) 663-2924

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M D I, Controls, Control Sys & Regulators, Edwardsburg, MI

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