BlueLab pH Cleaning and Calibration Kit 

Experienced growers suggest a pH level between 5.5 and 6.5 for most hydroponically grown plants. A dirty pH probe can skew the readings of your pH meter, resulting in a harmful growing environment. 

The BlueLab pH Cleaning and Calibration Kit contains everything needed to clean your pH probe. It also includes calibration solutions to keep meter readings accurate.

This kit comes with detailed color instructions that are easy to follow.

This BlueLab pH probe cleaning kit also includes:

De-canter vessels
Probe cleaner
Cleaning tool
Toothbrush
500 mL 4.0 calibration solution
500 mL 7.0 calibration solution