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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 15,078 reviews
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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: HTH


Item Weight: 13.3 Ounces


Item Form: Granular


Product Benefits: Kills Bacteria


UPC: 073187520302


Number of Items: 1


Unit Count: 78.4 Ounce


Product Dimensions: 4.25 x 10.88 x 10.5 inches


Item Weight: 13.3 ounces


Department: Unisex-Adult


Manufacturer: Innovative Water Care


Country of Origin: USA


Item model number: 52030


Frequently asked questions

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This item is non-returnable:

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

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Top Amazon Reviews

    • Worth every penny!
Size: 1 Pack Style: Regular Shock
I was surprised at how quickly and effectively this works. The water was sparkling clear and there was not a heavy scent of chemicals. All algae that had started forming on the bottom was gone, with very little effort from me. Well worth every penny!
Reviewed in the United States on July 14, 2025 by Melissa T ThomasAmazon Customer
    • Works great
Size: 12 Pack Style: Advanced Shock
This stuff works great at both treating algae and preventing it. I live in Phoenix AZ so my pool is more like a hot tub right now. The warm water is unfortunately very susceptible to algae growth if you don't stay strictly on top of your chemicals. It clears up the water very good. It hasn't gotten rid of ALL the black algae but it's been stubborn against every product I've used. Pool clears up within 24hours. Not too bad on the chlorine smell. Works for at least the week. Ive been getting better at treating the pool weekly to prevent any algae. Like I said the warm water will let algae grow like crazy if I don't stay on top of it. Not any products fault. ... show more
Reviewed in the United States on July 10, 2025 by KatK
    • best shock
Size: 12 Pack Style: Advanced Shock
best shock ever don’t waste your money on others, cleared up algae that inferior shock did nothing for.it is durable and has great chlorine content. we bought clorox shock because it was cheaper and had algae, but once we put this shock i. pooled, cleared it overnight
Reviewed in the United States on June 15, 2025 by Debra bird
    • Good stuff
Size: 12 Pack Style: Advanced Shock
Gets the job done at a fair price.
Reviewed in the United States on June 25, 2025 by HCS
    • This shock works great
Size: 12 Pack Style: Advanced Shock
The HTH shock works so much better than others I have used. It dissolves so much faster its amazing. It keeps my pool crystal clear all season long and just 1 bag a week for upkeep. I have tried many others and they either take forever to dissolve or it seems like i need to use more often. I strongly suggest using HTH for your pool needs its so easy to use. ... show more
Reviewed in the United States on June 21, 2025 by WahGwaan
    • Excellent Product at a Great Price!
Size: 12 Pack Style: Advanced Shock
Excellent Product at a Great Price! This shock is an amazing value and works exactly as promised. It keeps our pool crystal clear with minimal effort. We’ve tried other brands, but this one stands out for both effectiveness and affordability. I’ll definitely keep buying it!
Reviewed in the United States on July 11, 2025 by Tommi K.
    • Great product for salt water pools.
Size: 1 Pack Style: Advanced Shock
It's a great product for getting saltwater pools ready for the year. Our cheap OEM cover failed over winter leaving our pool green and nasty looking. 1 bag made noticeable results in 4 hours and had the water clear by the next day.
Reviewed in the United States on June 22, 2025 by Jeff in SC
    • Green be gone... 😆
Size: 6 Pack Style: Advanced Shock
Ok, here we go... So I live in Florida, so everyone here knows how hard it is to keep your pool from turning green... This product works great. I use a bag a week, with my normal chlorine and no green.... I liked it enough to buy it again. Great people, and a great price... Happy camper here.
Reviewed in the United States on May 21, 2025 by Richard Maciejewski

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