price per unit: liter & gallon

item *bulk qty 203421 *6/ pack *12/ case

🔆 43

.96

166

.40

💧 29

.45

111

.49

🍅 25

.92

98

.11

🌱
General Hydroponics PPM calibration solution is made with the highest quality electronic meter reference solutions in mind. Growers can use our reference solutions widely among many popular brands of meters using the NaCl scale. General Hydroponics check each batch to ensure that our solutions are exactly calibrated each time they are used. Add this solution to your grow room supplies today!