A lot of work goes into producing a healthy, high-yielding, hydroponic crop. It is both an art form and a science, and the more you do it, the more your intuition and ...
pH Buffer 4 or 7 - Calibration Fluid - 30ml Sachet, 250ml or 1 Litre
pH buffers are a solution of a known pH value designed to test the accuracy of pH meters.
Use weekly to calibrate your meter every week for maximum accuracy.
High quality pH calibration fluid in a safety bottle.
Always read the instructions and take the proper care when using.
Never mix chemicals, especially these
Available in 30ml sachets or 250ml, 1 Litre bottles
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