50PCS Chlorine Dip Test Strips Swimming Pool Water SPA Hot Tub PH Tester Paper

Total alkalinity: 0-40-80-120-180-240. Total bromine: 0 0.5/1 1/2.0 3/6.6 5/11 10/22. Total chlorine gas: 0-25-50-100-250-500. Residual chlorine: 0 0.5/1 1/2.0 3/6.6 5/11 10/22. PH: 6.2-6.8-7.2-7.6-8.0-8.4.

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