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Controllers, Monitors & Testing

Test Kits
Test Kits
Neptune Systems - Apex
Neptune Systems - Apex
Digital Aquatics ReefKeeper
Digital Aquatics ReefKeeper
Milwaukee
Milwaukee
Pinpoint
Pinpoint
Hydrometers & Refractometers
Hydrometers & Refractometers
Hanna Checker Colorimeters
Hanna Checker Colorimeters
Timers & Thermometers
Timers & Thermometers
Probes & Accessories
Probes & Accessories
32 / 64
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  • Iodine Colorimeter HI718 Hanna Checker HC - Fresh Water

    43 Reward Points

    Regular Price: $48.99

    Special Price: $43.94

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  • Iron Colorimeter HI721 Hanna Checker HC - Fresh water

    43 Reward Points

    Regular Price: $48.99

    Special Price: $43.94

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  • Phosphate High Range Colorimeter HI717 Hanna Checker HC - Fresh & Marine Water

    43 Reward Points

    Regular Price: $48.99

    Special Price: $43.94

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  • Ammonia Low Range Colorimeter HI700 Hanna Checker HC - Fresh Water

    43 Reward Points

    Regular Price: $48.99

    Special Price: $43.94

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

    44 Reward Points

    Regular Price: $49.99

    Special Price: $44.84

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

    44 Reward Points

    Regular Price: $49.99

    Special Price: $44.84

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  • pH Probe - Neptune Systems

    Starting at: $44.99

  • ReefKeeper Expansion Socket - Digital Aquatics

    49 Reward Points
    $49.99
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  • BRS Lab Grade pH Probe

    53 Reward Points

    Regular Price: $59.99

    Special Price: $53.81

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  • BRS Lab Grade ORP Probe

    62 Reward Points

    Regular Price: $69.99

    Special Price: $62.77

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  • PINPOINT ORP Replacement Probe

    67 Reward Points

    Regular Price: $74.99

    Special Price: $67.26

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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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  • Milwaukee MW101 pH Meter w/Battery

    71 Reward Points

    Regular Price: $79.99

    Special Price: $71.74

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  • PH-200 Waterproof pH Meter - HM Digital

    71 Reward Points

    Regular Price: $79.99

    Special Price: $71.74

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  • Advanced Leak Detection Module: ALD - Neptune Systems

    74 Reward Points
    $74.99
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  • ReefKeeper AP1 Advanced Probe 1 - Digital Aquatics

    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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  • Milwaukee MC120 pH Monitor

    80 Reward Points

    Regular Price: $89.99

    Special Price: $80.71

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  • ORP-200 Waterproof ORP Meter - HM Digital

    80 Reward Points

    Regular Price: $89.99

    Special Price: $80.71

    Out of stock

  • 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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  • PINPOINT pH Monitor

    89 Reward Points

    Regular Price: $99.99

    Special Price: $89.68

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  • Milwaukee MA957 CO2 Regulator

    89 Reward Points

    Regular Price: $99.99

    Special Price: $89.68

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  • ReefKeeper PC4 Power Bar Module - Digital Aquatics

    89 Reward Points
    $89.99
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  • Milwaukee MW500 ORP Monitor

    98 Reward Points

    Regular Price: $109.99

    Special Price: $98.65

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  • ReefLink Wireless Controller - EcoTech Marine

    99 Reward Points
    $99.00
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  • LED & Pumps Control Module: VDM - Neptune Systems

    99 Reward Points
    $99.99
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  • Milwaukee Digital Seawater Refractometer

    107 Reward Points

    Regular Price: $119.99

    Special Price: $107.62

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  • Milwaukee MC122 pH Controller

    107 Reward Points

    Regular Price: $119.99

    Special Price: $107.62

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  • PINPOINT ORP Monitor

    107 Reward Points

    Regular Price: $119.99

    Special Price: $107.62

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  • PINPOINT Salinity Monitor

    107 Reward Points

    Regular Price: $119.99

    Special Price: $107.62

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  • Milwaukee MC510 ORP Controller

    116 Reward Points

    Regular Price: $129.99

    Special Price: $116.59

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  • ReefKeeper Lite Basic - Digital Aquatics

    119 Reward Points
    $119.99
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  • Energy Bar 4 - Neptune Systems

    119 Reward Points
    $119.99
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  • ReefKeeper NET Internet Module - Digital Aquatics

    119 Reward Points
    $119.99
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  • VorTech Wireless Module: WXM - Neptune Systems

    124 Reward Points
    $124.99
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  • Lab Grade Conductivity/Salinity Probe - Neptune Systems

    124 Reward Points
    $124.99
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  • AI Wireless Module: AWM - Neptune Systems

    124 Reward Points
    $124.99
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  • ReefKeeper APC Advanced Pump Controller - Digital Aquatics

    129 Reward Points
    $129.99
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  • Energy Bar 8 - Neptune Systems

    159 Reward Points
    $159.99
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  • PINPOINT pH Controller

    179 Reward Points

    Regular Price: $199.99

    Special Price: $179.37

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  • PINPOINT ORP Controller

    179 Reward Points

    Regular Price: $199.99

    Special Price: $179.37

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  • Milwaukee SMS125 pH/ORP Controller Combo

    192 Reward Points

    Regular Price: $214.99

    Special Price: $192.82

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  • Apex Jr Controller - Neptune Systems

    239 Reward Points
    $239.99
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  • ReefKeeper Lite Plus - Digital Aquatics

    279 Reward Points
    $279.99
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  • MQ-200 Quantum Separate Sensor with Handheld PAR Meter

    340 Reward Points

    Regular Price: $379.99

    Special Price: $340.81

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  • ReefKeeper Elite Plus - Digital Aquatics

    349 Reward Points
    $349.99
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  • ReefKeeper Elite w/ Net - Digital Aquatics

    449 Reward Points
    $449.99
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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 Controller Gold System - Neptune Systems

    799 Reward Points
    $799.99
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