This deluxe complete high swimming pool and spa test kit allows you to maintain the highest levels of water quality. The kit can test for alkalinity, bromine, chlorine (free, total, and combined), cyanuric acid, calcium hardness, and pH with acid/base demand. It also comes with a heavy duty case. Taylor test kits are committed to being developed, manufactured, and supported as the best swimming pool test kits on the market. Use them for whatever tests you need done on your swimming pool or spa, and we guarantee you will be satisfied with the results!