Hanna Battery for pH or PPM Pen sold each individually

Citric Down will lower the pH level of your nutrient solution. The ideal pH for most hydroponic nutrient solutions is between 5.8 & 6.2, with some exceptions. Nutrient lockout will occur if pH levels are outside the optimal range.

Hydrofarm Electronic Water Timer makes watering your plants easy! Single-station analog timer attaches directly to your garden hose & automatically controls sprinklers, drip systems or soaker systems.

The Stealth-RO150™ Reverse Osmosis System is perfect for hydroponic gardens requiring up to 150 gallons a day of pure reverse osmosis water. Removes 98%+ of all contaminants from tap water. Choose from a 1:1 or 2:1 waste to product water ratio.

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

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.

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

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.

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.

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.