GH pH Test Kit 1 oz (24/Cs) Additive Safe for food and medicinal

Safe for food and medicinal plants

How it Works

Soul's specialty large-gauge perlite expands the product’s versatility and performance potential for hydroponic or soilless culture practices

and if you’re not thrilled with the results

Down To Earth™ Kelp Meal is pure ascophyllum nodosum seaweed from the clean

GH pH Test Kit 1 oz (24/Cs) Additive Safe for food and medicinalGeneral 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 expensive electronic meters because of its reliability and ease of use, which are important factors when the health of a valuable crop is at stake. Use 3 drops per 5ml of solution.