Poolmaster Smart Test 4-Way Swimming Pool and Spa Water Test Strips (50-Count)

For use in maintaining your pool/spa's proper water chemistry, these strips are easy to use and read. Simply dip and read for instant results. Color indicators on the strips react to your water's chemistry. Match the color indicator on your strip with the color indicator chart for comparison. Analyzes 4 chemical factors: Free Chlorine, Bromine, Alkalinity and pH. 50-Strips per kit.