50X 5 In1 Test Strips Swimming Pool SPA Chlorine PH Alkalinity Water Hardness BU

Total Alkalinity: 0 ~ 240. Free Bromine Range: 0~22. Total Chlorine Range: 0~10. Free Chlorine Range: 0 ~ 10. Total Hardness: 0 ~ 100. PH Range: 6.8 ~ 8.4. Used in swimming pools, spas and other industries.

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