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HTH

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

    • Based on 13,366 reviews
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jan 23
Order within 23 hours and 21 minutes
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Size: 12 Pack


Style: Advanced Shock


Features

  • 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

Brand: HTH


Item Weight: 1 Pounds


Item Form: Powder


Product Benefits: Prevents Bacteria,Sanitizes,Kills Bacteria


UPC:


Brand: HTH


Item Weight: 1 Pounds


Item Form: Powder


Product Benefits: Prevents Bacteria,Sanitizes,Kills Bacteria


UPC: 073187520371


Number of Items: 1


Unit Count: 192.0 Ounce


Product Dimensions: 10.6 x 7.5 x 14.1 inches


Item Weight: 1 pounds


Department: Unisex-Adult


Manufacturer: Innovative Water Care


Country of Origin: USA


Item model number: 52037R


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jan 23

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Best pool shock for pools
Size: 6 Pack Style: Regular Shock
I recently used HTH 52030 Swimming Pool Care Shock, and I’m very impressed with the results. This product quickly boosted the chlorine level in my pool, leaving the water crystal clear in just a few hours. The process was incredibly easy—just add the recommended amount, and the shock treatment works fast to eliminate algae, bacteria, and other contaminants. Within hours, I noticed a significant improvement in water clarity, and my pool looked fresh and inviting again. It’s ideal for maintaining a healthy pool environment and can be used regularly for preventive care. I also appreciate that this shock treatment is effective in both saltwater and chlorinated pools. For anyone looking to maintain sparkling clean water with minimal effort, I highly recommend HTH 52030. It’s a reliable product that delivers great results every time! ... show more
Reviewed in the United States on January 7, 2025 by SD
    • Effective results quickly
Size: 6 Pack Style: Advanced Shock
The HTH 52036 Swimming Pool Care Shock Advanced is outstanding for pool maintenance. This 6-pack delivers effective results quickly, clearing cloudy water and combating algae. The shock dissolves easily and doesn’t leave residue, making it user-friendly. After one treatment, my pool stayed crystal clear even with rainwater, which is impressive. The 6-pack offers great value, as it lasts longer than many other products. It’s suitable for all pool types, whether above-ground or in-ground. Overall, this pool shock is reliable and efficient, providing excellent results with minimal effort. Highly recommended for anyone seeking a high-quality solution for maintaining pristine pool water. ... show more
Reviewed in the United States on August 6, 2024 by SJ Benn
    • Affordable and Effective Pool Shock - A Great Value!
Size: 12 Pack Style: Advanced Shock
I recently purchased the HTH 52037 Swimming Pool Care Shock Advanced and have been thoroughly impressed with its performance. This swimming pool chemical has exceeded my expectations, providing excellent results at a fraction of the cost compared to the local pool store. The HTH 52037 Shock Advanced is a cal hypo formula that effectively restores clarity and cleanliness to my pool water. The 12-count pack offers ample supply for regular maintenance and shocking treatments. Each packet is conveniently pre-measured, making it easy to add the correct dosage without any guesswork. What truly stands out about this pool shock is its affordability. I was pleasantly surprised to find that the HTH 52037 Shock Advanced is significantly cheaper than similar products available at local pool stores. This affordability makes it a fantastic value for pool owners who want to maintain crystal-clear water without breaking the bank. In terms of performance, this pool shock delivers excellent results. It effectively eliminates contaminants, bacteria, and algae, leaving the pool water clean, fresh, and inviting. The cal hypo formula ensures a quick and efficient treatment, helping to maintain proper water balance and prevent any potential issues. The convenience factor of these pre-measured packets cannot be overstated. It saves time and eliminates the need for manual measuring, ensuring accurate dosing for consistent results. I appreciate the simplicity and ease of use that the HTH 52037 Shock Advanced provides. In conclusion, I highly recommend the HTH 52037 Swimming Pool Care Shock Advanced for anyone looking for an affordable and effective pool shock. Its cal hypo formula, combined with the convenience of pre-measured packets, makes it a reliable choice for maintaining a clean and balanced swimming pool. Furthermore, the significant cost savings compared to local pool stores add to its appeal. If you're seeking a high-quality pool shock that offers exceptional value, look no further than the HTH 52037 Shock Advanced. It definitely deserves a well-deserved five-star rating! ... show more
Reviewed in the United States on July 17, 2023 by Trey
    • It worked for my stock tank pool!
Size: 6 Pack Style: Advanced Shock
The product worked, however there were no instructions on the package on how much to use for smaller pools... The package indicated it would treat a 13,500 pool, which was WAY larger than my 700-gallon stock tank pool, thus the four-star rating. I had to do some calculations and started out with a tablespoon, which after 24 hours was not enough. I added more which was still not enough after 24 hours. I finally, ended up using 1/3 of the bag which did the trick. My stock tank pool's interior has pond shield on it and there doesn't appear to be any damage to it. I did have to run my Intex pump with filter for over 20 hours (changing the filter three times during this period) as even though the green was gone, the water was still very cloudy. The box contains six bags which should be enough to last me many years as we rarely get a lot of rain during the summer (like we just did which caused the pool to go green!) ... show more
Reviewed in the United States on September 3, 2024 by Linda J
    • Excellent product
Size: 1 Pack Style: Regular Shock
I like that the smell was strong that's when you know it's working at its best , water clarity was on point after using, quality good,size was great I can get 3 uses out of it for my Jacuzzi,worth it, it's cleans fast within minutes, also helps take slim away. Thanks 😊
Reviewed in the United States on October 6, 2024 by Christie HOPKINS
    • Good value and works great
Size: 12 Pack Style: Advanced Shock
Easy to dump down the filter. Works great taking care of rain derived algae in no time.
Reviewed in the United States on December 19, 2024 by Ron
    • Good product
Size: 12 Pack Style: Advanced Shock
Exactly what it says it is and less expensive than pool stores
Reviewed in the United States on November 29, 2024 by Mark
    • Works great!
Size: 12 Pack Style: Advanced Shock
Review Image by Diana Diana
Easy to use. Our pool was starting to show signs of algae growth along the pool walls so my husband needed to shock it. We’ve purchased shock through our local Lowe’s but this time decided to go with Amazon as we felt like it was at a lower rate which is a win for us. We shock our 10,000 gallon pool weekly running the pump for 12 hours as we add other chemicals too. It leaves the water sparkling clean and always makes me want to jump in the following day because the water looks so nice. I say that it last about a week before having to re-shock or depending on how often pool is used. ... show more
Reviewed in the United States on September 27, 2024 by Diana Diana

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