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Water Testing

22 products
  • Bluelab pH 4.0 Calibration Solution
    $9.10
    $10.00
    $9.10
    Sold out
  • General Hydroponics pH Down Liquid
    $10.90
    $12.67
    $10.90
    Sold out
  • Bluelab Truncheon Meter
    $132.85
    $145.99
    $132.85
    Sold out
  • GroLine Waterproof Portable pH/EC/TDS Meter - HI9814
    $279.00
    $279.00
    Sold out
  • GroLine Monitor for Hydroponic Nutrients pH/TDS/Temp /w Probe
    $395.00
    $395.00
    Sold out
  • HM Digital PH-80 pH Pen/Temperature Meter
    $43.02
    $46.50
    $43.02
    Sold out