PurGro GroBot pH Probe, Industrial Replacement veg nutrients These are not typically sold
Yard notes & kiln story
Description
PurGro GroBot pH Probe, Industrial Replacement veg nutrients These are not typically sold These are not typically sold as a kit to the end user 3 ml 1 ml of Rootbastic per 1 US gallon of water (0 These don't look like the ones from the hydro store because they are double junction flat surface pH probes typically used in chemical plants for process control