HTH 3" Chlorine Tabs Ultra Swimming Pool Sanitizer and HTH Shock Advanced Swimming Pool Shock Treatment | Cal Hypo Formula

Price: $125.49

As of 2026-01-26 03:13:22 UTC (more info)

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Product Features

The HTH 3" Chlorine Tabs Ultra kill algae and bacteria, soften water, clarify, and guard surfaces from stains and scales with a 1 week dosage for up to 10,000 gallon pools.

The HTH Shock Advanced provides fast-acting algae and bacteria killing, reduces chlorine odor and irritation, and quickly restores crystal clarity within 24 hours.

The HTH 3" Chlorine Tabs Ultra dissolve slowly for longer chlorine life while the HTH Shock Advanced formula sanitizes without adding cyanuric acid to prevent overstabilization.

Both products are compatible with all pool types including vinyl-lined pools and saltwater systems.

For best results, use the HTH 6-Way Test Strips (sold separately) to test and balance swimming pool water twice weekly.