General Hydroponics® pH Test Indicator 8 oz acid mix Pyrethrum TR is a ready-to-use

Pyrethrum TR is a ready-to-use

while precise nutrient ratios help minimize the risk of heavy metal contamination in your crops

Use 2 - 4 pounds for 100 square feet of garden soil and make sure you follow application guidelines

Simple to operate - Easy to use

The result is an optimized growing medium and root zone that work together to support high-performing plants

General Hydroponics® pH Test Indicator 8 oz acid mix Pyrethrum TR is a ready-to-useGeneral 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.