NUTRI+® PHOSPHORIC ACID is a highly concentrated solution used to lower the pH level of a plant nutrient solution.

Cyco pH Down lowers the total pH value of the made nutrient solution. This product lowers nutrient pH. Recommended pH for most plants is 5.5 to 6.5.

Florasol pH4 calibration solution is for pH-meters. A monthly calibration of your equipment is essential to obtain precise results.

Florasol pH7 calibration solution is for pH-meters. A monthly calibration of your equipment is essential to obtain precise results.

HI70032P is a premium quality 1,382 mg/L (ppm) TDS calibration solution standardized with a conductivity meter that has been calibrated with potassium chloride NIST 2202 SRM in deionized water for analytical use in accordance with ISO 3696/BS3978.

To ensure ongoing accuracy, use Bluelab 2.77 EC Conductivity Standard Solution - 500 ml to test your Bluelab EC/PPM products.

Green Gold Electrode Cleaning Solution works to clean both, pH & conductivity meters. Removes both organic & inorganic deposits from meter sensors. Use monthly or as needed to refresh your meter & keep it working. Compatible with most testers.

High quality solutions formulated for calibrating pH probes. Bluelab® calibration solutions are essential for use with all Bluelab® products.

HI7031L is a premium quality 1,413 µS/cm conductivity standard that is prepared against a NIST traceable potassium chloride solution.

GH pH Up Pro is a premium solution for maintaining and raising a nutrient's pH level. Base formulated using potassium hydroxide and potassium carbonate. Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level.

GH pH Down Pro is a premium solution for maintaining and lowering a nutrient's pH level. Acid formulated using food-grade phosphoric acid. Just add a little at a time if your nutrient pH is too high in order to lower the pH to the proper level.

Green Gold Solutions help keep your meters in good working order. Always make sure your electrode is kept in an electrode storage solution. If dry, refill the pH meter cap. Solutions are compatible with most testers.