• CYCO pH Down

    $109.62 – $166.76
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  • CYCO pH Up

    $113.08 – $166.76
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  • General Hydroponics® pH Control Kit

    $188.23
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  • General Hydroponics® pH Down Liquid

    $101.87 – $165.45
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  • General Hydroponics® pH Test Kit

    $121.05 – $121.56
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  • General Hydroponics® pH Up Liquid

    $101.87 – $165.45
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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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  • HM Digital™ pH Meter Model PH-80

    $46.08
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  • HM Digital™ pH/TDS/EC/Temp Meter Model COM-300

    $136.56
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  • HM Digital™ Waterproof pH Meter Model PH-200

    $89.08
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