Hanna Instruments HI5036-050 GroLine Quick Cal pH/EC/TDS Calibration Solution (500 mL) micro gardens Helps ensure stable nutrient solution PEGB013 Type::Silver Bullet Equivalent to Hydrologic HL31030 extraction bags

Helps ensure stable nutrient solution control

Our formula does not contain any plant growth regulators or artificial colouring and dyes to ensure a clean formula

so no additional feeding is required during that early stage

Highly concentrated 34% potassium hydroxide solution

Integrates with any TrolMaster plug-in device module to dramatically increase output control options

Hanna Instruments HI5036 050 GroLine Quick Cal pH EC TDS Calibration Solution (500 mL) micro gardens Helps ensure stable nutrient solution PEGB013 Type::Silver Bullet Equivalent to Hydrologic HL31030 extraction bags Helps ensure stable nutrient solution control Our formula does not contain any plant growth regulators or artificial colouring and dyes to ensure a clean formula