Marketing InformationThe Insta-TEST® 3 Plus pool and spa strip measures free chlorine 0 to 10 ppm, bromine 0 to 20 ppm, total alkalinity 0 to 240 ppm and pH 6.2 to 9. 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-TEST® 3 Plus strip is perfect for basic water testing of the most important test factors. This product is available with trilingual (English, Spanish, French) instructions.