General Hydroponics® pH Test Kit Size:GH pH Test Kit 1 oz (24/Cs) OMRI and OIM certified

OMRI and OIM certified

Many new varieties respond very strongly and reliably to Purple Maxx

Works by enhancing the plant's ability to control the movement of nutrients through the stem and leaves and augments the existing enzyme functions in the plant

Selectable values for conductivity and temperature

EZ-Clone® is proud to announce the introduction of the brand new 16 Site Low Pro System now in white

General Hydroponics® pH Test Kit Size:GH pH Test Kit 1 oz (24/Cs) OMRI and OIM certifiedGeneral 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.