The HTH Test to SwimTM Pool is the ultimate solution to testing and adjusting the 6 key chemicals in your swimming pool whenever you need. It uses Google Cloud Vision technology for accurate results, fast. This pool care chemical includes 30 strips for testing total chlorine, bromine, pH, total alkalinity, total hardness, and cyanuric acid (CYA) levels. It works with all swimming pools, and with the HTH Test to SwimTM app, you can get personalized results in seconds. Unbalanced water can reduce the effectiveness of sanitizer, irritate swimmers, and damage pool surfaces or equipment For best results, test weekly to keep your pool water balanced and all clear for cannonballs, all summer. Trust HTH Test to SwimTM Pool Care Chemical to keep your pool water balanced and crystal clear.