$166.76 (as of 27/12/2018 00:54 PST details )
Features:
- Designed to work superbly in hydroponic environments, both soil less mixtures and soil grown plants
- Includes pH Test Indicator tube fill a test tube halfway with nutrient, add a few drops of pH Test Indicator, and observe the coloration of the liquid in the vial.
- For best results, discard and replace hydroponic solution regularly