AquaChek Biguanide Test Strips

AquaChek Biguanide Test Strips Biguanide is a chlorine-free sanitizer such as Baquacil Chlorine-Free Swimming Pool Sanitizer and Algistat, BaquaSpa Sanitizer, SoftSwim Bactericide, PolyClearr MaxiPolish Swimming Pool Sanitizer and Algistat, or Revacil Swimming Pool Sanitizer.Tests for: Biguanide Total Alkalinity pH Quantity: 25 test strips per bottle AquaChek Blue is a simple-to-use two-part test: Step 1 dip the strip and check the Total Alkalinity and pH Step 2 re-dip the strip, moving it back and forth underwater for 30 seconds, to test the Biguanide level To keep your pool or spa water at its best, test at least once a week, and write down results so you can track changes over time.Comes with complete instructions in 15 languages: English, French, Spanish, Italian, Czech, Danish, Dutch, German, Greek, Hungarian, Polish, Portuguese, Russian, Swedish and Turkish.Baquacil and BaquaSpa are trademarks of Arch Chemicals, Inc. SoftSwim is a trademark of Bio-Lab, Inc. PolyClear MaxiPo