T.A. Oligo Spectrum 500ml
BioBizz Alg-A-Mic
Microgreens growing pads - rockwool
Canna Aqua Vega A+B
- -20%
- -20%
Solutions of a known and fixed pH (4 and 7) to calibrate pH meters.
Calibrate your pH meter on a regular basis to ensure ongoing accuracy from the meter.
Available buffer solutions: pH 4 and pH 7