<p> </p> <p>6 in 1 water quality test strips for swimming pools, spas kids pools, drinking water &amp; more.</p> <p>Just soak the test paper in the water for 2 seconds &amp; remove it. <br>Hold the test strip horizontally for 30 seconds.</p> <p>Compare with the colour table &amp; read within 30 seconds.</p> <p>The 6 parameters checked are:</p> pH Alkalinity Free Chlorine Total Chlorine Hardness Cyanuric acid <p>Designed for testing the pH/alkalinity, residual chlorine, total chlorine</p> <p>Specifications:</p> <p>Material: Paper<br>Test targets: 6 in 1<br>Quantity: 50 Strips/Bottle<br>Total Hardness: 0 ~ 100<br>Total Chlorine Range: 010<br>Free Chlorine Range: 0 ~ 10,<br>pH Range: 6.8 ~ 8.4<br>Total Alkalinity: 0 ~ 240, Cyanuric acid</p> <p>Package includes:<br><br>50 x water test strip &amp; instruction manual</p>