Meters & Solutions

General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube halfway with nutrient, add a few drops of pH Test Indicator and observe the coloration of the liquid in the test vial. Many experienced growers prefer our pH Test Kit to...

General Hydroponics pH Control Kit contains 8 oz pH UP, 8 oz pH DOWN, 1 oz indicator and vial.

The Active Aqua floating thermometer delivers easy and accurate readings of your water temperature. This gauge floats and has a pressure sensitive backing for easy mounting. It features readings in both Celsius and Fahrenheit, as well as clear markings...

The Gardena Smart Flow Water Meter measures water usage daily, monthly, by season, or yearly. The LCD screen clearly displays information with measurements in liters or gallons. Save money and reduce waste! For use on hose-end products or at the water...

OBSOLETE

OBSOLETE

General Hydroponics Pro pH adjusters are based on completely different technology than our traditional smaller sized adjusters offering. New non-mineral based acids and bases will not add nutrient value like the use of phosphoric acid or potassium...