52037R Pool Care Shock Advanced, Swimming Pool Chemical - Cal Hypo Formula, Prevents Algae, Restores Crystal Clear Water - Shock Treatment, 1lb (12 Pack)

• BENEFITS: Stay all clear for cannonballs; This fast-dissolving, convenient 4-in-1 formula kills and algae, reduces chlorine odor and irritation, and quickly restores crystal clarity
• FEATURES: Multi-functional shock treatment for weekly use to solve 90% of pool water problems within and restore crystal clarity
• 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 : For best results, use with 6-Way Test Strips to test and balance your swimming pool water twice weekly
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