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BENEFIT Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills bacteria and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity

FEATURES Multi-functional shock treatment for weekly use; Use weekly to solve 90% of pool water problems within 24 hours

VISIBLY BRILLIANT SPARKLE This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock

COMPATIBLE WITH ALL SWIMMING POOLS This product is great for all pool types including vinyl-lined pools and saltwater systems

YOU'RE ALL CLEAR WITH HTH For best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly