JED 00-IT492 7-Factor Water Test Strips for Swimming Pool & Spa, 50 Count
It tests for Free Chlorine, Bromine, Total Chlorine, Alkalinity, pH, Total Hardness, and Cyanuric Acid. Simply dip the strip into your pool or spa water for one second and remove. The strip will give you instant results, helping you maintain the proper chemical balance for your water.