This refill is intended for the JBL PROAQUATEST GH test. It allows for the determination of the total hardness (GH) of the water, an essential parameter for the well-being of fish and plants in freshwater aquariums and ponds.
Fill the test tube with the water to be tested, then add the reagent drop by drop. The color change from red to green indicates the end of the measurement. The number of drops directly corresponds to the total hardness value in German degrees (°dGH).
Refill compatible with the JBL PROAQUATEST GH kit. It allows for the extended use of the test without replacing the entire equipment.