200PCS 6 IN1 Chlorine Dip Test Strips Hot Tub SPA Swimming Pool PH Tester Paper
Chlorine free pool doesn't need stabilizer (Cyanuaric Acid), so the Total Chlorine and Cyanuaric Acid pads colors won't match. Total Alkalinity Test Range: 0~240ppm. Our test strip doesn't test for Salt and TDS.