Grotek TDS 1000 PPM Calibration Solution

Bluelab pH 4.0 Calibration Solution Bluelab pH 4.0 calibration solutions - a must in every grower's toolbox Contains 500 ml/16.9 fl oz Boost your pH products’ longevity with regular cleaning...

Bluelab pH 7.0 Calibration Solution Bluelab pH 7.0 calibration solutions - a must in every grower's toolbox. Contains 500 ml/16.9 fl oz  Boost your pH products’ longevity with regular cleaning and calibration  The Bluelab calibration...

Grotek pH #7 Calibration Solution (500 ml) Ideal for most pH meters Conveniently colour coded Calibrate pH meters regularly to keep them accurate

Bluelab Probe Care Kit - Conductivity Everything you need from Bluelab to clean and test conductivity (ppm/EC) & temperature probes Your Bluelab Probe Care Kit – Conductivity contains:  Probe care instructions Two 20 ml single-use sachets...

Grotek 1400 PPM TDS Calibration Solution

The Nutradip GrowBoss is the meter you have always wanted. This meter didn't happen by accident, it has been designed and manufactured by the creators of the "Original" three in...

The Nutradip GrowBoss is the meter you have always wanted. This meter didn't happen by accident, it has been designed and manufactured by the creators of the "Original" three in...

Bluelab pH Probe KCI Storage Solution The perfect solution to store and hydrate your Bluelab pH probes or pens.The perfect solution to store and hydrate pH probes. pH probes are...