Swimming Pools & Spas › Leisure Time › Chlorine › Chlorine

Check sanitizer level, calcium hardness, alkalinity, and pH with one easy-to-r... Check sanitizer level, calcium hardness, alkalinity, and pH with one easy-to-read test strip. Keeping your water balanced is now easier than ever. It includes an easy-to-read chart to help tell if your spa water is within the proper ranges. These... more