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Availability:
In Stock.
Arrives
Wednesday, Nov 4
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At a glance
- Condition
- New
- Size
- 6 Pack
- Style
- Regular Shock
- Weight
- 13.3 oz
- Item Form
- Granular
- Product Benefits
- Kills Bacteria
- In the box
- HTH 52030 Swimming Pool Care Shock
Features 5
- 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.
Specs 16
| Brand | HTH |
|---|---|
| Item Weight | 13.3 ounces |
| Item Form | Granular |
| Product Benefits | Kills Bacteria |
| Brand Name | HTH |
| UPC | 073187520302 |
| Number of Packs | 6 |
| Package Size Name | 6 Pack |
| Number of Items | 1 |
| Unit Count | 78.4 Ounce |
| Item Highlight | Swimming Pool Chlorinator Boosts Chlorine Levels; Cal Hypo Formula; Shock, Sanitize, Clarify, and Help Prevent Bacteria |
| Item Type Name | Swimming Pool Chlorinator Boosts Chlorine Levels, Cal Hypo Formula |
| Manufacturer | Innovative Water Care |
| Model Number | 52030 |
| Manufacturer Part Number | 52030 |
| Manufacturer Warranty Description | Warranty |
No specs match.
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Nov 4
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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![Hot Tub Test Strips for Spas - 6 in 1 Water Test [100 Pack]](https://m.media-amazon.com/images/I/815TGc48B+L._AC_US500_.jpg)
Top Amazon Reviews
Turned my neglected green pool blue overnight
Size: 1 Pack
Style: Regular Shock
I used this last year after coming home from a long international trip to a completely green pool and really I was impressed with how well it worked. My pool had been neglected for over two weeks while I was away and by the time I got home the water was fully green with visible algae growth. I added two bags of this shock around the perimeter of the pool in the evening with the filter running and brushed the pool afterward to help make sure everything dissolved completely. By the next morning, the pool had already changed from swamp green to a cloudy blue. It was not crystal clear yet, but the algae was clearly dead and the transformation overnight was dramatic. At that point I backwashed and rinsed my sand filter and a crazy amount of algae flushed out. I continued filtering nonstop, brushed the walls again, skimmed debris, and used socks over the inlet ports to catch the finer dead algae particles. Throughout the day the socks kept collecting thick layers of fine algae residue so I rinsed them several times as the filter continued running. By the following morning I could clearly see the liner pattern at the bottom of the pool again. After another day of backwashing, brushing, vacuuming, skimming, and filtering, the pool was completely clear and ready for the family to enjoy again. I think it’s important to mention that bringing a green pool back takes patience no matter what brand of shock you use. This is not an instant one-hour fix but the product absolutely did its job and worked quickly once the filter system had time to remove all the dead algae. For reference, I used this in a soft sided above ground pool with a sand filter system. The attached photos show the pool before treatment, the morning after shocking, the second day of filtering and cleaning, then the final clear result on day 3. Pros: Worked quickly on a severely green pool Noticeable overnight improvement Killed algae effectively Dissolved well after brushing Worked well with a sand filter setup Cons: Restoring a neglected pool still takes time and repeated filtering/backwashing
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Reviewed in the United States on May 14, 2026 by Honest Customer
Great Pool Care
Size: 1 Pack
Style: Regular Shock
The HTH 52031 Pool Care Shock worked very well for quickly clearing up cloudy water and boosting chlorine levels in our pool. After using it, the water looked noticeably cleaner and fresher within a short amount of time. The product dissolves fairly quickly and was easy to apply following the directions on the package. It helped control algae and that strong “pool smell” that usually happens when chlorine levels are off balance. I also liked that it restored water clarity without requiring multiple treatments. This shock treatment is especially useful after heavy pool use, rainstorms, or hot weather when chlorine levels tend to drop faster. The packaging was convenient, and the product feels reliable for regular pool maintenance. Pros: Quickly boosts chlorine levels Helps clear cloudy water Effective against algae and odors Easy to use Good for routine pool maintenance Cons: Strong chlorine smell during application Best results require proper water balance and testing Overall, this is a dependable pool shock treatment that helps keep pool water clean, clear, and swim-ready with minimal hassle.
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Reviewed in the United States on May 26, 2026 by Cristina
Highly effective shock for pool maintenance
Size: 1 Pack
Style: Regular Shock
I recently used the shock to get my pool back in shape, and it worked exactly as expected. The Cal Hypo formula is potent and noticeably boosted the chlorine levels in my pool within just a few hours. It cleared up the water quickly, removing the slight cloudiness I had been dealing with. The packaging was sturdy, and the product was easy to pour without creating too much dust. Given the price point, this is an excellent value for money compared to other brands I’ve tried. I’ll definitely be keeping a few packs on hand for regular maintenance throughout the season. Highly recommend for anyone looking for a reliable, fast-acting chlorine boost.
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Reviewed in the United States on October 1, 2026 by Troy405
Works great and keeps my pool crystal clear.
Size: 6 Pack
Style: Regular Shock
I've had excellent results with this HTH pool shock. It dissolves quickly, boosts the chlorine level fast, and does a great job clearing up cloudy water before it turns into a bigger problem. The individual packets are convenient because there's no measuring or mess. It's become part of my regular pool maintenance routine, and my water stays clean and sparkling. Great value and a product I will definitely continue to buy!
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Reviewed in the United States on August 3, 2026 by Summer Suzanne Skov
Shock
Size: 6 Pack
Style: Regular Shock
Works fine when new. I found out what happens when the product is exposed to heat. My pool supplies are outside in a cabinet but away from direct sun. The Vegas heat turns them into a gooey mess, then it won't dissolve. So, just keep it indoors, climate controlled.
Reviewed in the United States on September 27, 2026 by ERM
Pool care
Size: 1 Pack
Style: Regular Shock
Works well and is easy to use. It helped keep my pool water clear and fresh. I’m happy with the results.
Reviewed in the United States on September 20, 2026 by Teresita lezcano
It works great.
Size: 6 Pack
Style: Regular Shock
This stuff is great! Cleared up my pool in one day.
Reviewed in the United States on September 10, 2026 by sherena
Works Well
Size: 6 Pack
Style: Regular Shock
Used this up so quickly but it made my pool swim able and fresh. It was easy to use and the odor smelled like a clean pool. It’s not cheap but worth it for peace of mind.
Reviewed in the United States on September 15, 2026 by Islandgal