6-Way Swimming Pool & Spa Chemical Test Strips
HTH, 6 Way, Test Strips, Test For Cyan Acid & Calcium Hardness. Easy to use, HTH 6-Way Swimming Pool & Spa Chemical Test Strips from Arch Chemical test for free chlorine, bromine, pH, total alkalinity, total hardness and Cyanuric acid and require only one dip in the water to read all 6 pool variables.
