Comprehensive fresh & saltwater test kit lab with convenient carrying case.Includes 10 tests: Ammonia (NH3/4); Nitrite (NO2); Nitrate (NO3); pH (low range & high range kits); Carbonate Hardness (KH); General Hardness (GH); Iron (Fe); Calcium (Ca); Phosphate (PO4).Full complement of test equipment: test pipettes; spoon; glass test tubes & caps, foam lab base, instruction booklet for each test, test use chart.See individual Test Kit information for details.