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Non-returnable. Transportation of this item is subject to hazardous materials regulation
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Availability:
Only 3 left in stock, order soon!
Arrives
Saturday, Oct 31
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At a glance
- Condition
- New
- Size
- 24 Pack
- Style
- Advanced Shock
- Weight
- 26.4 lb
- Item Form
- Granular
- Item Type Name
- Pool Shock
Features 5
- POWERFUL 4-IN-1 FORMULA: Kills bacteria, prevents algae, reduces odor, and restores clarity with advanced HTH chemistry.
- CRYSTAL CLEAR RESULTS: This Cal hypo powered swimming pool shock treatment clears cloudy water in just 24 hours for sparkling confidence.
- NO CYANURIC ACID: Cal Hypo formula avoids overstabilization or chlorine lock while protecting pool health, so your chlorine stays effective longer.
- SHOCK WEEKLY WITH CAL HYPO: For best results, shock weekly with HTH Cal Hypo Shock Advanced.
- FAST-DISSOLVING EASE: Quick-dissolving cal hypo pool shock makes weekly care simple, reliable, and stress-free.
Description
HTH Shock Advanced pool shock helps you take on cloudy, unbalanced water with confidence. This powerful 4-in-1 swimming pool shock treatment kills bacteria, prevents algae, reduces chlorine odor, and restores clarity—fast. With Cal Hypo technology, it delivers a sparkling clean pool without adding cyanuric acid, so you can enjoy a healthy, inviting swim all season long. For best results, shock weekly with HTH Shock Advanced. HTH is here to help giving you the confidence to keep your water clear, safe, and always swim ready. You're all clear with HTH.
Specs 15
| Brand | HTH |
|---|---|
| Item Weight | 26.4 pounds |
| Item Form | Granular |
| Product Benefits | Controls Algae, Kills Bacteria, Maintains Clean Sanitized Water |
| Brand Name | HTH |
| UPC | 073187520654 |
| Number of Packs | 1 |
| Package Size Name | 24 Pack |
| Number of Items | 24 |
| Unit Count | 384 Ounce |
| Item Highlight | Cal Hypo Formula; Prevents Bacteria & Algae; Restores Crystal Clear Water; Shock Treatment |
| Item Type Name | Pool Shock |
| Manufacturer | Solenis |
| Model Number | 52065 |
| Manufacturer Part Number | 52065 |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Saturday, Oct 31
This item is non-returnable:
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
Non-returnable. Transportation of this item is subject to hazardous materials regulation
View our full returns policy here.
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Top Amazon Reviews
Shocked the #$%^ out my pool
Size: 12 Pack
Style: Advanced Shock
Great deal. Did as intended. I will purchase again
Reviewed in the United States on October 20, 2026 by DCoop
Keeps water crystal clear
Size: 12 Pack
Style: Advanced Shock
Works great for keeping my pool crystal clear. Great value, cheaper than Walmart.
Reviewed in the United States on September 30, 2026 by Miranda Sessums
Powerful Pool Shock That Works!
Size: 12 Pack
Style: Advanced Shock
This HTH pool shock is easy to use and does a great job clearing up the water and keeping the pool fresh. It dissolves quickly and helps tackle chlorine demand, algae, and cloudy water. Great product to keep on hand for regular pool maintenance, especially during the hot summer months. Definitely makes pool care easier!
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Reviewed in the United States on August 22, 2026 by Richard
good for pool owners
Size: 6 Pack
Style: Advanced Shock
great to have on hand if you own a pool. value is good, concentration is great
Reviewed in the United States on October 2, 2026 by Molly Gerber
Same quality, more affordable than pool stores
Size: 6 Pack
Style: Advanced Shock
Good quality equal to those bought at pool specialty stores. Only disappointment is package used to come with more quantity. For whatever reason shipping was limited to only a six pack.
Reviewed in the United States on August 10, 2026 by MS
Definitely recommend for Crystal Clearwater, all summer
Size: 12 Pack
Style: Advanced Shock
Great product at a fair price ordered back in the spring have used it all summer. It’s now August my Water has stayed crystal clear. I have a 6000 gal pool . I add one chlorine tablet and shock once a week and once a month I add a splash of algacide. And that’s it perfect water all summer I definitely recommend.
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Reviewed in the United States on August 25, 2026 by c wright
Pool care needs
Size: 12 Pack
Style: Advanced Shock
Needed pool maintenance supplies, ordered 12pk, received promptly and no issues with delivery. Good product, easy to use, decent price and keeps pool chemicals stable.
Reviewed in the United States on September 6, 2026 by Carol S
Green to clear
Size: 6 Pack
Style: Advanced Shock
I gotta give credit where credits due. I have a small 700 gallon pool and unfortunately I became a little neglectful on some rainy days and I kept noticing no matter what I did the water was staying slightly greenish. I read up on what I might need and came across this product. I was skeptical because on the box it says 1 bag treats over 13,000 gallons of water... well my pool is only 700 gallons. So I ratioed it and it says it would be 1/19th of a bag. Well I guess im slightly laid back I just visually guessed 1/19 and said "that'll do". Well sure enough this morning my water is finally clear! Very happy mama here!
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Reviewed in the United States on August 15, 2026 by Alisha