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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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  • Milwaukee pH Calibration Fluid - Single Use Packet

    Starting at: $0.84

  • PINPOINT pH High Precision Calibration Fluid

    Starting at: $0.84

  • PINPOINT ORP (Redox) 400 Calibration Fluid

    2 Reward Points

    Regular Price: $2.99

    Special Price: $2.54

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  • Neptune Systems Conductivity Calibration Solution

    Starting at: $2.69

  • PINPOINT Salinity Calibration Fluid

    6 Reward Points

    Regular Price: $7.99

    Special Price: $6.79

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  • Digital Aquatics ReefKeeper Lunar Pod

    Starting at: $8.49

  • ReefKeeper Switch Adapter Kit - Digital Aquatics

    8 Reward Points

    Regular Price: $9.99

    Special Price: $8.49

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  • PINPOINT Probe Storage Fluid

    8 Reward Points

    Regular Price: $9.99

    Special Price: $8.49

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  • Hamilton 24-Hour Grounded Timer

    10 Reward Points

    Regular Price: $11.99

    Special Price: $10.19

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  • Vertex Sensor-Mount

    10 Reward Points

    Regular Price: $11.99

    Special Price: $10.19

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  • AquaBus Cable - Neptune Systems

    Starting at: $11.69

  • Vertex Titanium Grounding Pole

    12 Reward Points

    Regular Price: $14.99

    Special Price: $12.74

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  • 2 Channel Apex to Light Dimming Cable - Neptune Systems

    13 Reward Points

    Regular Price: $14.99

    Special Price: $13.49

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  • Float Switch Kits - Digital Aquatics

    13 Reward Points

    Regular Price: $15.99

    Special Price: $13.59

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  • Elos pH Marine Aqua Test Kit

    15 Reward Points

    Regular Price: $17.99

    Special Price: $15.29

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  • Elos KH (Alkalinity) Aqua Test Kit

    15 Reward Points

    Regular Price: $17.99

    Special Price: $15.29

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  • Aqua Illumination Sol Interface Cable to Apex VDM Module - Neptune Systems

    16 Reward Points

    Regular Price: $17.99

    Special Price: $16.19

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  • 2 Channel Apex to Tunze Stream Cable - Neptune Systems

    17 Reward Points

    Regular Price: $19.99

    Special Price: $17.99

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  • Milwaukee Protective Hardshell Case for Refractometer

    19 Reward Points

    Regular Price: $22.99

    Special Price: $19.54

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  • Milwaukee pH Calibration Fluid - Box of 25 Single Use Packets

    Starting at: $19.54

  • Red Sea Alkalinity Pro Test Kit

    21 Reward Points

    Regular Price: $24.99

    Special Price: $21.24

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  • Elos Nitrite Aqua Test Kit

    21 Reward Points

    Regular Price: $24.99

    Special Price: $21.24

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  • Milwaukee pH600 pH Meter Pen

    21 Reward Points

    Regular Price: $24.99

    Special Price: $21.24

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  • Temp Probe (For Elite) - Digital Aquatics

    21 Reward Points

    Regular Price: $24.99

    Special Price: $21.24

    Out of stock

  • Temp Probe (for Lite) - Digital Aquatics

    21 Reward Points

    Regular Price: $24.99

    Special Price: $21.24

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  • ReefKeeper Float Switch Bracket Kit - Digital Aquatics

    Starting at: $21.24

  • Elos Magnesium Aqua Test Kit

    23 Reward Points

    Regular Price: $27.99

    Special Price: $23.79

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  • Elos Nitrate Aqua Test Kit

    23 Reward Points

    Regular Price: $27.99

    Special Price: $23.79

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  • Elos Phosphate Aqua Test Kit

    23 Reward Points

    Regular Price: $27.99

    Special Price: $23.79

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  • Refractometer for Reading Salinity with Calibration Fluid

    24 Reward Points

    Regular Price: $39.99

    Special Price: $24.99

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  • Red Sea Calcium Pro Test Kit

    25 Reward Points

    Regular Price: $29.99

    Special Price: $25.49

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  • Red Sea Magnesium Pro Test Kit

    25 Reward Points

    Regular Price: $29.99

    Special Price: $25.49

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  • Elos Ammonia Aqua Test Kit

    25 Reward Points

    Regular Price: $29.99

    Special Price: $25.49

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  • Elos Calcium Aqua Test Kit

    25 Reward Points

    Regular Price: $29.99

    Special Price: $25.49

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  • Vertex Sensor-Mag Probe Holder

    25 Reward Points

    Regular Price: $29.99

    Special Price: $25.49

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  • Solid Surface Advanced Leak Detection Probe - Neptune Systems

    26 Reward Points

    Regular Price: $29.99

    Special Price: $26.99

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  • Low-Profile Advanced Leak Detection Probe - Neptune Systems

    26 Reward Points

    Regular Price: $29.99

    Special Price: $26.99

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  • Lunar Simulator Module: LSM & Lunar LED String - Neptune Systems

    Starting at: $26.99

  • Temperature Probe - Neptune Systems

    26 Reward Points

    Regular Price: $29.99

    Special Price: $26.99

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  • Vertex Sensor-Mag XD Probe Holder

    27 Reward Points

    Regular Price: $31.99

    Special Price: $27.19

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  • Red Sea Phosphate Pro (PO4) test kit

    29 Reward Points

    Regular Price: $34.99

    Special Price: $29.74

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  • ReefKeeper HUB Bus Hub - Digital Aquatics

    32 Reward Points

    Regular Price: $37.99

    Special Price: $32.29

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  • Milwaukee MA955 CO2 Solenoid Valve

    33 Reward Points

    Regular Price: $39.99

    Special Price: $33.99

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  • Phosphate Low Range Colorimeter HI713 Hanna Checker HC - Fresh & Marine Water

    34 Reward Points

    Regular Price: $48.99

    Special Price: $34.29

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  • Calcium Colorimeter HI758 Hanna Checker HC - Marine Water

    34 Reward Points

    Regular Price: $48.99

    Special Price: $34.29

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  • Alkalinity Colorimeter HI755 Hanna Checker HC - Marine Water

    34 Reward Points

    Regular Price: $48.99

    Special Price: $34.29

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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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  • Neptune Systems I/O Breakout Box

    35 Reward Points

    Regular Price: $39.99

    Special Price: $35.99

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  • PINPOINT pH Replacement Probe

    38 Reward Points

    Regular Price: $44.99

    Special Price: $38.24

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  • pH Probe - Neptune Systems

    Starting at: $40.49

  • Total Chlorine Colorimeter HI711 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

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  • Nitrite Low Range Colorimeter HI707 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

    Please wait...
  • Phosphorus High Range Colorimeter HI706 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

    Please wait...
  • Silica Low Range Colorimeter HI705 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

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  • Alkalinity Colorimeter HI775 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

    Please wait...
  • Free Chlorine Colorimeter HI701 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

    Please wait...
  • Total Chlorine Ultra Low Range Colorimeter HI761 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

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  • Nitrite High Range Colorimeter HI708 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

    Please wait...
  • Ammonia Medium Range Colorimeter HI715 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

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  • Bromine Colorimeter HI716 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

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

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

    Please wait...
  • Nitrite Ultra Low Range Colorimeter HI764 Hanna Checker HC - Marine Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

    Please wait...
  • Chromium VI Low Range Colorimeter HI749 Hanna Checker HC - Fresh Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

    Please wait...
  • Phosphorus Ultra Low Range Colorimeter HI736 Hanna Checker HC - Marine Water

    41 Reward Points

    Regular Price: $48.99

    Special Price: $41.64

    Out of stock

32 / 64
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