INSTA-TEST 5 - Date Code Of 10/12 Free Chlorine (Bromine), Alkalinity, pH, Total Hardness
Free Chlorine 0-10 ppm, Bromine 0-20 ppm, Total Chlorine 0-10 ppm, Alkalinity 0-240 ppm, pH 6.2-8.4 and Total Hardness 50-800 ppm with instant results.
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