The LM Water Test Kit is inexpensive and will give you a great starting point for finding the best solution for your water quality needs. It includes 6 tests; total hardness, total iron (Vario, Ferro), free chlorine, total chlorine, pH, and total alkalinity, and a chloride check using the supplied chloride strip (TDS - Total Dissolved Solids). It should be noted that these tests are only the basic necessities required, and other particulate matter and/or contaminants may be present that remain untested with this kit.