2-Pack AquaChek Total Hardness Test Strips for Pool & Spa Water - 2 x 25 ct. bottles (50 tests total)
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<b>[Product Information]</b><br>
<ul>
<li>Total Water Hardness -  Spa, Pool, or household water testing</li>
<li>Calcium + Magnesium Levels</li>
<li>Low Range (up to 120ppm)</li>
<li>High Range (from 250 to 1,000ppm)</li>
<li>Two 25-count bottles (50 tests total)</li>
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