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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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  • Total Chlorine Ultra High Range Colorimeter HI771 Hanna Checker HC - Fresh Water

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

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

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

    48 Reward Points
    $48.99
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  • 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
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  • Red Sea Algae Control Multi Test Kit (NO3/PO4)

    49 Reward Points
    $49.99
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  • ReefKeeper Expansion Socket - Digital Aquatics

    49 Reward Points
    $49.99

    Out of stock

  • ReefKeeper DCI DC Pump Interface - Digital Aquatics

    56 Reward Points
    $56.99
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  • BRS Lab Grade pH Probe

    59 Reward Points
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  • BRS Lab Grade ORP Probe

    69 Reward Points
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  • ReefKeeper RD1 Remote Display 1 - Digital Aquatics

    69 Reward Points
    $69.99
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  • ORP Probe - Neptune Systems

    Starting at: $69.99

  • ReefKeeper SL1 pH and ORP Module - Digital Aquatics

    69 Reward Points
    $69.99
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  • Digital Aquatics ReefKeeper MLC Lunar Light Module

    Starting at: $69.99

  • ReefKeeper PC1 Expansion Socket (Bus connection for Elite)

    69 Reward Points
    $69.99
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  • Advanced Leak Detection Module: ALD - Neptune Systems

    74 Reward Points
    $74.99
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  • PINPOINT ORP Replacement Probe

    74 Reward Points
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  • ReefKeeper AP1 Advanced Probe 1 - Digital Aquatics

    79 Reward Points
    $79.99
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  • Milwaukee MW101 pH Meter w/Battery

    79 Reward Points
    Please wait...
  • PH-200 Waterproof pH Meter - HM Digital

    79 Reward Points
    $79.99
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  • ReefKeeper ALC Dimmable T5 & Aqua Illumination Sol LED Controller - Digital Aquatics

    79 Reward Points
    $79.99
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  • Salinity Module: PM2 - Neptune Systems

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

    84 Reward Points
    $84.99
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  • Milwaukee MC120 pH Monitor

    89 Reward Points

    Out of stock

  • ReefKeeper PC4 Power Bar Module - Digital Aquatics

    89 Reward Points
    $89.99
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  • ORP-200 Waterproof ORP Meter - HM Digital

    89 Reward Points
    $89.99

    Out of stock

  • ReefLink Wireless Controller - EcoTech Marine

    99 Reward Points
    $99.00
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