Keep your pH Perfect!
pH Test Indicator 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 growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease of use. pH Up - 8 oz The premium solution maintaining and raise 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. pH Down - 8 oz The premium solution maintaining and lower 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. The pH Control Kit includes one liquid pH test kit and 8 oz of each Up (base) and Down (acid). The pH Test Kit is a liquid tester that covers a pH range of 4.0 to 8.5. Includes sampling tube, reagent and color comparison card. Both pH Down and pH Up provide consistent and reliable performance.