200PCS Chlorine Dip Test Strips Swimming Pool Water SPA Hot Tub PH Tester Paper
Easy to test: Free Chlorine/Bromine ,pH,Total Alkalinity. Total alkalinity test range: 0~240 ppm. 🌱7-in-1 Water Quality Test Strip Swimming Pool Hot Bath SPA Total Chlorocyanuric Acid Hardness Residual Bromine Water Quality Test Strip.