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HTH

HTH 52030B Swimming Pool Care Shock, Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula, 13.3oz (Pack of 6)

  • Based on 17,233 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, May 7
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Size: 6 Pack


Style: Regular Shock


Features

  • BENEFIT: Shock treat, sanitize, clarify, and help prevent bacteria and algae in your swimming pool water, all with this convenient, easy-to-use product
  • FEATURES: Multi-use pool shock with Cal Hypo; Use weekly to solve 90% of pool water problems within 24 hours; Fast-acting and fast-dissolving
  • 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
  • YOURE ALL CLEAR WITH HTH: For best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly

Description

The HTH Multi-Use Shock Treatment is a must-have for any pool owner looking to keep their water sparkling clean. This convenient product shock treats, sanitizes, clarifies, and helps prevent bacteria and algae in your swimming pool water. With Cal Hypo as its active ingredient, it can solve 90% of pool water problems within 24 hours. The fast-acting and fast-dissolving formula creates a visibly brilliant sparkle without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock. It's compatible with all pool types, including vinyl-lined pools and saltwater systems. For best results, combine with HTH 6-Way Test Strips to test and balance your pool water twice weekly. Keep your pool water crystal clear with HTH Multi-Use Shock Treatment.

Brand: HTH


Item Weight: 13.3 Ounces


Item Form: Granular


Product Benefits: Kills Bacteria


UPC:


Brand Name: HTH


UPC: 073187520302


Item Type Name: Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula


Included Components: HTH 52030 Swimming Pool Care Shock


Manufacturer: Innovative Water Care


Unit Count: 78.4 Ounce


Manufacturer Warranty Description: Warranty


Item Form: Granular


Product Benefits: Kills Bacteria


Item Weight: 13.3 Ounces


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 7

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

    • Chlorine keep you clean
Size: 6 Pack Style: Regular Shock
Review Image by Vancarlus Tennison
Review Image by Vancarlus Tennison
Review Image by Vancarlus Tennison
I’m very pleased with the HTH 52030B Swimming Pool Care Shock! This product does exactly what it promises—quickly boosts chlorine levels and gets the pool back to looking clean and clear in no time. I’ve used it regularly, and it works fast to clear up cloudy water and keep everything sanitized. It’s especially helpful after heavy pool use or after a storm when the water needs a quick refresh. Just one treatment makes a noticeable difference. The application is simple and straightforward, which makes pool maintenance a lot less stressful. I also like that it’s reliable—you can count on consistent results every time. Overall, this is a must-have for keeping your pool in great condition. Effective, easy to use, and a great addition to any pool care routine. Highly recommend! ... show more
Reviewed in the United States on April 6, 2026 by Vancarlus Tennison
    • Cheaper than Walmart
Size: 6 Pack Style: Regular Shock
Does what it should, great price.
Reviewed in the United States on February 22, 2026 by Amber
    • Great for ungrounded pool and price is good
Size: 1 Pack Style: Regular Shock
Great product and great price when on sale here vs stores..highly recommend as it does the job on my pool
Reviewed in the United States on March 27, 2026 by Amazon Customer
    • Makes your green pool blue
Size: 6 Pack Style: Regular Shock
Pretty great at keeping my pool clean. Just like th stuff you find at the big box store. I've never been obsessive with the chemicals in the pool, just finding a least minimum amount of checmicals to keep the water clear and the water not being too imbalanced. When things get out of hand or there was a large storm this is great for getting things back on track. ... show more
Reviewed in the United States on March 16, 2026 by Chris
    • Great shock
Size: 1 Pack Style: Regular Shock
This shock was great. It cleared our pool within 24 hours
Reviewed in the United States on January 31, 2026 by q,,
    • This is THE BEST ever! You won't go wrong with this!
Size: 6 Pack Style: Regular Shock
This is by far the best product for killing algae and it gives you the most amazingly clear water you have ever seen. I use it weekly and I wish I had known about this years ago when I was fighting algae and raising my chlorine level without ever using pool stabilizer (CYA) . They are not lying when that say it cures 90% of pool problems. ... show more
Reviewed in the United States on December 23, 2025 by Sid
    • Very good product
Size: 2 Pack Style: Regular Shock
Works very well
Reviewed in the United States on February 14, 2026 by jon m moore
    • COST EFFECTIVE
Size: 1 Pack Style: Regular Shock
I'm starting to consider replacing chlorine tabs with this shock. This product just seems to work better and is more cost effective.
Reviewed in the United States on April 5, 2026 by Rebecca

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