Free Chlorine, Alkalinity, pH, Cyanuric Acid

The Insta-TEST® POOL 4 Plus pool & spa strip measures
– Free Chlorine 0-10 ppm
– Total Alkalinity 0-240 ppm
– pH 6.2-9.0
– Cyanuric Acid (Stabilizer) 0-250 ppm

This test strip is a dip-n-read strip with instant results. The Insta-TEST® POOL 4 Plus strip is ideal pool strip allowing the user to measure the most important test factors

The test strips are packaged in a waterproof Pop Top bottle with a molded desiccant liner, which protects the strips from moisture and UV light