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.