Biguanide Blue Test Strips
<p>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.*</p>
<p>AquaChek™ Blue is a simple-to-use two-part test:<br /> Step 1 — dip the strip and check the Total Alkalinity and pH<br /> Step 2 — re-dip the strip, moving it back and forth underwater for 30 seconds, to test the Biguanide level</p>
<p>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.</p>
<p>Comes with complete instructions in 15 languages: English, French, Spanish, Italian, Czech, Danish, Dutch, German, Greek, Hungarian, Polish, Portuguese, Russian, Swedish and Turkish.</p>