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.

The Bluelab pH Pen will quickly and accurately measure your hydroponic solution’s acid/ alkaline balance. Use to maximize plant nutrition and ensure optimum plant health, growth and yields.

NUTRI+® POTASSIUM HYROXIDE is a highly concentrated solution used to raise the pH level of a plant nutrient solution.

Fluval's pH Wide Range Test (4.5 - 9.0) measures the general range of pH in fresh or salt water aquariums. By determining whether your water is acidic or alkaline, you can create a natural habitat for your fish & or plants.

HydroLogic Stealth-RO150 membrane filters up to 150 GPD (gallons per day) & should be replaced between 6 months to 2 years.

HYCLEAN is a powerful chelating agent for cleaning & preventing salt, mineral & fertilizer buildup in driplines, irrigation equipment & grow media. This concentrated formula is made with non-toxic, biodegradable & environmentally friendly ingredients.

Gardeners can conveniently test moisture & pH levels with the handy Active Air 2-Way Meter. Moisture readings register on a scale of 0 (dry) to 10 (moist). pH readings between pH 3 (acidic) & pH 10 (basic) are represented.

Athena Cleanse is made from hypochlorous acid. A unique, plant-safe chemical with powerful oxidative properties to keep your root zone clean & free of unwanted organisms & buildup. It improves both mineral & oxygen availability in growing media.

For use with Stealth-RO and smallBoy. Reduces iron, sulfur, chlorine, chloramines and heavy metals.