• Bluelab® pH Probe KCI Storage Solution

    $98.35
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  • Bluelab® ppm Pen — Now Bluelab® Conductivity Pen

    $72.44
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  • Bluelab® Pro Controller™

    $829.33
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  • Bluelab® Probe Care Kit for Conductivity Probes

    $19.47
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  • Bluelab® Probe Care Kit pH

    $23.87
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  • Bluelab® Probe Care Kit pH & Conductivity

    $28.29
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  • Bluelab® Pulse Multimedia EC/MC Meter

    $211.20
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  • CYCO pH Down

    $18.61$67.20
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  • CYCO pH Up

    $18.61$67.20
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  • Emerald Harvest® pH Up

    $27.91$90.55
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  • General Hydroponics® pH Control Kit

    $157.86
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  • General Hydroponics® pH Down Liquid

    $17.72$76.47
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  • General Hydroponics® pH Test Kit

    $104.43$133.85
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  • General Hydroponics® pH Up Liquid

    $17.72$76.47
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  • HM Digital™ EC/TDS HydroTester Model COM-80

    $38.37
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  • HM Digital™ Handheld TDS Tester Model TDS-3

    $28.40
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