Water Test PH Strips Residual Chlorine Value Alkalinity Hardness Tester (100pcs)

Total alkalinity: 0-40-80-120-180-240. Total bromine: 0 0.5/1 1/2.0 3/6.6 5/11 10/22. Residual chlorine: 0 0.5/1 1/2.0 3/6.6 5/11 10/22. Total chlorine gas: 0-25-50-100-250-500. Total hardness: 0-50-100-250-500-1000.

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