GH pH Test Indicator 8 oz or lettuce raft growing

or lettuce raft growing

This blend is lighter and contains higher air content than the moisture formula

Rich in phosphorus

Heavy-duty 2 ft x 4 ft quick assembly tray stand

GH pH Test Indicator 8 oz or lettuce raft growingGeneral 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.