General Hydroponics pH Control Kit contains 8 oz pH UP, 8 oz pH DOWN, 1 oz indicator and vial.
Designed specifically for hydroponic growers, the pH Test Kit provides a simple, foolproof method of obtaining fast and accurate pH readings.
Super concentrated, use only 1 drop per test.
Each 30ml bottle provides over 800 tests.
Measures from pH 4.0 through 8.0.
Highly accurate with a long shelf life, the side of the bottle sports an easy-to-read waterproof color chart.
Test comes with a quality test tube.