by AquaChek
Buy new: $12.00
(Visit the Best Sellers in Test Strips list for authoritative information on this product's current rank.)
AquaChek TDS Test Strips measure Total Dissolved Solids in spas and pools. One easy dip gives you accurate results in seconds. Check TDS frequently to help prevent hazy water, scale buildup and corrosion caused by high levels of TDS.
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