50-200PCS 3in1 Chlorine Dip Test Strip Hot Tub SPA Swimming Pool pH Tester Paper
Product Specifications50-200PCS 3in1 Chlorine Dip Test Strip Hot Tub SPA Swimming Pool pH Tester Paper. Easy to test: Free Chlorine/Bromine, pH, Total Alkalinity. Total Alkalinity Test Range: 0~240ppm.