HTH 52037 Swimming Pool Care Shock Advanced, Swimming Pool Chemical, Cal Hypo Formula, 12 Count(Pack of 1)
- BENEFITS: 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 to solve 90% of pool water problems within 24 hours 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 HTH: For best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly
![all clear](https://m.media-amazon.com/images/S/aplus-media-library-service-media/eba88fd2-f401-499b-b538-9786e37e3ea0.__CR0,0,1940,600_PT0_SX970_V1___.jpg)
![Shock Advanced](https://m.media-amazon.com/images/S/aplus-media-library-service-media/fe3f8e32-5791-41ba-b65c-d64ecf52ba9b.__CR0,0,1940,1200_PT0_SX970_V1___.jpg)
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