100/50/pcs Chlorine Dip Test Strips Hot Tub SPA Swimming Pool PH Tester Paper*UK
Water test in swimming pool or spa pool. Effective chlorine, pH, and total hardness can be tested. Residual Chlorine Range: 0 - 10. Material: PH Test Strip. Detectable PH Range: 6.8 - 8.4. Total Hardness Range: 0 - 240.