Bluelab 7.0 Calibration Solution Case of 6 Options:Bluelab pH 7.0 Calibration Solution 250 ml, case of 6 Nutrilife H2O2 (29%) makes it

Nutrilife H2O2 (29%) makes it easy to increase oxygen levels around the root zone

pack of 5 11

Technaflora's pH Up and pH Down are potent and effective

It is important to maintain a pH of 5

Bluelab 7.0 Calibration Solution Case of 6 Options:Bluelab pH 7.0 Calibration Solution 250 ml, case of 6 Nutrilife H2O2 (29%) makes itCalibration and conductivity standard solutions a must in every grower's toolbox. The Bluelab calibration and conductivity standard solutions are essential for use with all Bluelab products for the calibration of pH and testing the cleanliness of the Bluelab Conductivity Temperature probe. Bluelab solutions are manufactured specifically for Bluelab products and are referenced to high laboratory standards to ensure your Bluelab products last longer and