Our Master Test Kit is packaged with a sturdy, waterproof box which includes fast, easy and accurate test solutions for pH, high range pH, ammonia and nitriteEasily and accurately measure the water conditions in your aquariumScientifically accurate for professional resultsIncludes free color wallchart, riveted color cards and glass test tubesKit includes over 800 testsFor freshwater aquariumsIncludes: waterproof box, test solutions for pH, high range pH, ammonia, nitrite,& free color wallchart.