100x Chlorine Dip Pool Test Strips Hot Tub Swimming SPA PH Tester Paper 2 Bottle
Easy to test: Free Chlorine/Bromine, pH, Total Alkalinity. Total Alkalinity Test Range: 0~240ppm. Free Chlorine Test Range: 0~10ppm. Test at both ends of pool twice a week for best results. PH Test Range: 6.8~8.4.