pH up and down solutions with EC calibration buffer bottles

pH Control & Calibration – pH & EC

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      Stay Balanced. Stay Growing.

      Nail that sweet spot every time.

      Adjust, Measure, and Trust Your Numbers

      From pH Up and Down to calibration fluids, this collection ensures your nutrient mix stays in the goldilocks zone. No guesswork - just dialled-in data and healthy uptake.

      Ready to double-check your results? Head to Meters & Pens for pinpoint precision.

      11 products
      pH Down by Growth Technology
      pH Down by Growth Technology
      Growth Technology
      from $15.00
      pH Down by Hy-gen
      pH Down by Hy-gen
      pH Down by Hy-gen
      HY-GEN
      from $15.00
      pH Up by Hy-gen
      pH Up by Hy-gen
      pH Up by Hy-gen
      HY-GEN
      from $12.00
      pH Up by Growth Technology
      pH Up by Growth Technology
      Growth Technology
      from $15.00
      pH Calibration Solution by Bluelab - 4.0 & 7.0 Standard
      pH Calibration Solution by Bluelab - 4.0 & 7.0 Standard
      pH Calibration Solution by Bluelab - 4.0 & 7.0 Standard
      Bluelab
      from $2.95
      PH-4 Buffer Solution by Hy-gen
      PH-4 Buffer Solution by Hy-gen
      HY-GEN
      from $10.00
      PH-7 Buffer Solution by Hy-gen
      PH-7 Buffer Solution by Hy-gen
      HY-GEN
      from $10.99
      Conductivity 2.76 by Hy-gen
      Conductivity 2.76 by Hy-gen
      HY-GEN
      from $10.99
      Electrode Storage Solution by Hy-gen
      Electrode Storage Solution by Hy-gen
      HY-GEN
      from $12.99
      pH Test Kit by Hy-gen
      pH Test Kit by Hy-gen
      HY-GEN
      $13.00
      Complete pH Kit by Hy-gen
      Complete pH Kit by Hy-gen
      HY-GEN
      $30.00