Simple liquid reagent enables quick and easy pH testing for all users
Wide pH range (4.0 to 8.5) covers most hydroponic and soil applications
Includes sampling tube, reagent, and color comparison chart for complete testing
Cost-effective alternative to electronic pH meters for reliable results
Summarized by Shop
General Hydroponics pH Test Kits make pH testing easy. Simply fill a test-tube (Not Included with 8oz size) 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 expensive electronic meters because of its reliability and eas