AquaChek® 561625A Test Strip; Biguanide/Total Alkalinity/pH Testing, Blue, 25 Strips/Bottle
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®