The HTH Pool Care 6-Way Test Kit is a comprehensive testing kit specifically designed for swimming pools. With 100 tests included in the 1lb container, this kit allows pool owners to accurately test the pH levels of their swimming pool water. The test kit is easy to use with drop-form testing and provides reliable results to ensure the water is safe for swimmers. Made by the trusted brand HTH and manufactured in the United States, this pool water testing kit is a must-have for maintaining a clean and healthy swimming pool.