The Insta-TEST3 Plus pool & spa strip measures Free Chlorine 0-10 ppm, Bromine 0-20 ppm, Total Alkalinity 0-240 ppm, and pH 6.2-9.0. This test strip is a dip-n-read strip with instant results. Each bottle includes 50 test strips packaged in a waterproof blue PopTop bottle with a hinged cap.

The bottle has a molded desiccant liner, which protects the strips from moisture and UV light. The Insta-TEST3 Plus strip is perfect for basic water testing of the most important test factors.