General Hydroponics® pH Test Indicator 8 oz Grotek You’ve given your plants the

You’ve given your plants the best environment

50% stronger than the most popular brands on the market yet it costs the same

Use it to start fruiting plants like tomatoes

Transplant plugs in soil or soilless hydrogardening applications

Non-Pesticide

General Hydroponics® pH Test Indicator 8 oz Grotek You’ve given your plants theGeneral 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.