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Controllers & Testing

Test Kits
Test Kits
Controllers & Monitors
Controllers & Monitors
Hydrometers & Refractometers
Hydrometers & Refractometers
Hanna Checker Colorimeters
Hanna Checker Colorimeters
Timers & Thermometers
Timers & Thermometers
Probes & Accessories
Probes & Accessories
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  • BRS eGift Card

    From $1.00
  • DŌS Dosing and Fluid Metering System - Neptune Systems

    349 Reward Points
    $349.95

    Out of stock

  • ReefKeeper DCI DC Pump Interface - Digital Aquatics

    56 Reward Points
    $56.99
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  • 12V Power Supply - Neptune Systems

    15 Reward Points
    $15.99
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  • Magnetic Probe Rack - Neptune Systems

    39 Reward Points
    $39.95
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  • Apex Controller Gold System - Neptune Systems

    799 Reward Points
    $799.99
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  • AFS Automatic Feeding System - Neptune Systems

    99 Reward Points
    $99.99
    Please wait...
  • ReefKeeper Bus Cables - Digital Aquatics

    Starting at: $9.99

  • Milwaukee Instruments Electrode Rinse Solution, Single Use Packets

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  • Apex Controller with Standard pH Probe - Neptune Systems

    524 Reward Points
    $524.99
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  • Apex Controller with Lab-Grade pH Probe - Neptune Systems

    549 Reward Points
    $549.99
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  • Apex Jr Controller - Neptune Systems

    239 Reward Points
    $239.99

    Out of stock

  • ReefKeeper Lite Basic - Digital Aquatics

    119 Reward Points
    $119.99
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  • ReefKeeper Lite Plus - Digital Aquatics

    279 Reward Points
    $279.99
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  • ReefKeeper Elite Plus - Digital Aquatics

    349 Reward Points
    $349.99

    Out of stock

  • ReefKeeper Elite w/ Net - Digital Aquatics

    449 Reward Points
    $449.99
    Please wait...
  • Phosphate Low Range Colorimeter HI713 Hanna Checker HC - Fresh & Marine Water

    48 Reward Points
    $48.99
    Please wait...
  • Calcium Colorimeter HI758 Hanna Checker HC - Marine Water

    48 Reward Points
    $48.99
    Please wait...
  • Alkalinity Colorimeter HI755 Hanna Checker HC - Marine Water

    48 Reward Points
    $48.99
    Please wait...
  • Total Chlorine Colorimeter HI711 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • BRS Lab Grade pH Probe

    59 Reward Points
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  • BRS Lab Grade ORP Probe

    69 Reward Points
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  • Red Sea Reef Foundation Pro Multi Test kit (Ca,Alk,Mg)

    34 Reward Points

    Regular Price: $49.99

    Special Price: $34.99

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  • Red Sea Algae Control Multi Test Kit (NO3/PO4)

    49 Reward Points
    $49.99
    Please wait...
  • Red Sea Alkalinity Pro Test Kit

    24 Reward Points
    $24.99
    Please wait...
  • Red Sea Calcium Pro Test Kit

    29 Reward Points
    $29.99
    Please wait...
  • Red Sea Magnesium Pro Test Kit

    29 Reward Points
    $29.99
    Please wait...
  • Red Sea Phosphate Pro (PO4) test kit

    34 Reward Points
    $34.99
    Please wait...
  • ReefLink Wireless Controller - EcoTech Marine

    99 Reward Points
    $99.00
    Please wait...
  • Milwaukee Digital Seawater Refractometer

    119 Reward Points
    Please wait...
  • Refractometer for Reading Salinity with Calibration Fluid

    24 Reward Points

    Regular Price: $39.99

    Special Price: $24.99

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  • Elos Magnesium Aqua Test Kit

    27 Reward Points
    $27.99
    Please wait...
  • Elos Nitrite Aqua Test Kit

    24 Reward Points
    $24.99
    Please wait...
  • Elos Nitrate Aqua Test Kit

    27 Reward Points
    $27.99
    Please wait...
  • Elos Ammonia Aqua Test Kit

    29 Reward Points
    $29.99
    Please wait...
  • Elos Phosphate Aqua Test Kit

    27 Reward Points
    $27.99
    Please wait...
  • Elos pH Marine Aqua Test Kit

    17 Reward Points
    $17.99
    Please wait...
  • Elos KH (Alkalinity) Aqua Test Kit

    17 Reward Points
    $17.99
    Please wait...
  • Elos Calcium Aqua Test Kit

    29 Reward Points
    $29.99
    Please wait...
  • Nitrite Low Range Colorimeter HI707 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Phosphorus High Range Colorimeter HI706 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Silica Low Range Colorimeter HI705 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Alkalinity Colorimeter HI775 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Free Chlorine Colorimeter HI701 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Total Chlorine Ultra Low Range Colorimeter HI761 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Nitrite High Range Colorimeter HI708 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Ammonia Medium Range Colorimeter HI715 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Bromine Colorimeter HI716 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Total Chlorine Ultra High Range Colorimeter HI771 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Nitrite Ultra Low Range Colorimeter HI764 Hanna Checker HC - Marine Water

    48 Reward Points
    $48.99
    Please wait...
  • Chromium VI Low Range Colorimeter HI749 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Phosphorus Ultra Low Range Colorimeter HI736 Hanna Checker HC - Marine Water

    48 Reward Points
    $48.99
    Please wait...
  • Ammonia High Range Colorimeter HI733 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Color of Water Colorimeter HI727 Hanna Checker HC - Fresh & Marine Water

    48 Reward Points
    $48.99
    Please wait...
  • Iodine Colorimeter HI718 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • Iron Colorimeter HI721 Hanna Checker HC - Fresh water

    48 Reward Points
    $48.99
    Please wait...
  • Phosphate High Range Colorimeter HI717 Hanna Checker HC - Fresh & Marine Water

    48 Reward Points
    $48.99
    Please wait...
  • Ammonia Low Range Colorimeter HI700 Hanna Checker HC - Fresh Water

    48 Reward Points
    $48.99
    Please wait...
  • VorTech Wireless Module: WXM - Neptune Systems

    124 Reward Points
    $124.99
    Please wait...
  • Salinity Module: PM2 - Neptune Systems

    84 Reward Points
    $84.99
    Please wait...
  • pH/ORP Probe Module: PM1 - Neptune Systems

    84 Reward Points
    $84.99
    Please wait...
  • LED & Pumps Control Module: VDM - Neptune Systems

    99 Reward Points
    $99.99
    Please wait...
  • Energy Bar 4 - Neptune Systems

    119 Reward Points
    $119.99
    Please wait...
  • Neptune Systems I/O Breakout Box

    39 Reward Points
    $39.99
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