INFORMATION
Description
General Hydroponics pH Test Kits make pH testing easy. The General Hydroponics liquid pH tester is perfect for easy testing and as a backup to your digital meter. The kit covers a wide range, from 4.0 to 8.5 and gives up to 500 tests with 30 mL.
Many experienced growers prefer the General Hydroponics pH Test Kit to expensive electronic meters because it is reliable and easy of use.