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HTH™ makes pool care easy

Our balancers, sanitizers, shocks and algaecides are designed with DIY pool owners like you in mind.

Solve chlorine lock for good

Only HTH™ fast-dissolving shock with Cal Hypo clarifies and rids water of contaminants without using any CYA (cyanuric acid). That means it won't overstabilize or cause chlorine lock—ever.

Shop HTH® Shock
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