

💧 Shock your pool into sparkling perfection—because clear water is the new cool.
HTH 52028 Ultimate Shock Treatment is a 7-in-1 chlorine booster that kills bacteria and algae, prevents stains and scale, and reduces skin and eye irritation. Suitable for all pool types including saltwater and vinyl liners, it treats up to 13,500 gallons per bag and delivers visible results within 24 hours. This 6-pack ensures season-long pool clarity and safety, making it a must-have for any pool owner aiming for pristine water and worry-free swim days.
















| Best Sellers Rank | #225,593 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #258 in Swimming Pool Clarifiers & Enzymes |
| Brand | HTH |
| Customer Reviews | 4.6 out of 5 stars 1,356 Reviews |
| Item Form | Powder |
| Item Weight | 6.5 Pounds |
| Product Benefits | Controls Algae, Kills Bacteria, Prevents Stains |
| UPC | 073187520289 |
| Unit Count | 96.0 Ounce |
A**A
Very happy
Works well. Used when we first opened the pool and throughout the summer. Our water quality was very good.
T**7
It really works!!
It makes the water sooo soft it feels like silk gliding across your skin. Aahh....It cleared up the green tinge in my pool water in less than 30 minutes. AMAZING!! The only thing is it's quite expensive, $65 for a 6pk compared to $69 for a 12pk of my regular shock treatment so I will only use this occasionally to prevent the green tinge and when people are coming over to swim. I'll use my regular shock the rest of the time.
J**N
Green to blue overnight
After 2 weeks of fighting algae, using Leslie's pool shock, and constantly trying to figure out how to at least see the bottom. This just made the water perfect. $35 for 6 lbs too. Now, I'm not embarrassed of the gross look and able to use it again, I can use the recommended amount weekly and while not having to spend a fortune and time. Edit: seeing a lot of negative reviews. You absolutely have to balance your alkalinity and PH first before adding any pool shock for any brand. This is my first full season owning a pool and my green water was gone over night after giving time for the baking soda to mix in for a few hours and then shocked the pool overnight. Also, don't pour the shock in directly. Mix it with warm water in a bucket and pour it around the pool that way. I'm confident I won't have green water again with this very simple weekly maintenance
S**L
Great price/delivery for this all-in-one product!
We live this all-in-one formula which has been hard to find locally. Getting a bill package delivered and at a fair price made opening the pool and getting in with the family a breeze.
A**B
Works well; maybe pricey (?)
Repurchased these as it does a good job on cloudy pool water. Perhaps overpriced (?)
P**D
The product is good, but the price is outraged on Amazon!
The product is good, but the price is much higher than I usually pay. The description did not include number of bags, just that the box contained one pound bags. Only six bags were in the box and I expected 12 for the price. I pay $39 for six bags and Amazon charged $61 for six of the exact same bags . That's just mean!
S**N
Best and don't bleach liners
I tried a cheap Walmart brand shock and it literally bleached a couple bottom sections of my liner so I stick with name brand only. This keeps the pool clean and no more bleaching.
U**8
My favorite shock brand
So the features sheerness and warmth are not really applicable but I put 5 stars there anyway because it is a great product. This is my go-to pool shock and they were out locally. Was so happy to find this on Amazon. Was a bit disappointed in my mail carrier for delaying delivery for some unknown reason but I finally received it.
Trustpilot
5 days ago
3 days ago