| Blue Horizons 3-Way Chlorine test strips provide a quick and easy way to test your swimming pool water. They offer tests for free chlorine, pH and total alkalinity. Simply dip the strip in the water... |
| | The Insta-TEST® 3 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... |
| | The Insta-TEST® 4 Plus pool & spa strip measures Free Chlorine 0-10 ppm, Bromine 0-20 ppm, Total Alkalinity 0-240 ppm, pH 6.2-9.0, and Total Hardness 0-800 ppm. This test strip is a dip-n-read strip... |
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