AquaChek Blue - 25 Strips

Fast, simple, safe and accurate. AquaChek Blue tests for Biguanide, Total Alkalinity, and pH. Ideal for customers who use biguanide as a sanitizer in their pool or spa. Biguanide is a chlorine-free sanitizer such as BAQUACIL Chlorine-Free Swimming Pool Sanitizer and Algistat, BaquaSpa Sanitizer, Softswim Bactericide, PolyClear. For a clean and healthy pool, test the water at each end a minimum of twice a week!