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Your cart is empty.The HTH Super Shock Treatment is the perfect solution to stay all clear for cannonballs. This fast-dissolving, convenient 4-in-1 formula kills bacteria algae, reduces chlorine odor and irritation, and quickly restores crystal clarity. It's a multi-functional shock treatment for weekly use, solving 90% of pool water problems within 24 hours. This Cal Hypo based formula sanitizes without adding cyanuric acid (CYA) to prevent overstabilization or chlorine lock, and is compatible with all swimming pools, including vinyl-lined pools and saltwater systems. For best results, use with HTH 6-Way Test Strips to test and balance your swimming pool water twice weekly, and trust HTH to keep your pool water sparkling clear.
Matt T.
Reviewed in the United States on March 18, 2025
price is high but works good
Thomas Eads
Reviewed in the United States on February 14, 2025
Very nice!Works as it should.Exactly what I wanted.
kate3570
Reviewed in the United States on January 5, 2025
I don't have a pool! But I do have a front loader washer, and after trying several different ways to get rid of mold stains, I went to you tube for ideas. This was one of the ideas, and it works wonders.
C. Vince
Reviewed in the United States on January 1, 2025
Great product, arrived as described.
PeteR
Reviewed in the United States on August 16, 2024
Good value and performs well. Dissolves ok and easy directions. Chlorine shock.
Michelle weaver
Reviewed in the United States on July 19, 2024
Use once a week.. keeps pool free off algae and water is crystal clear
Emily Truscott
Reviewed in the United States on December 2, 2024
I poor one of these in each week and my pool stays clean and clear!
john
Reviewed in the United States on October 30, 2024
Was closing down my pool for the winter but the weather didn't co operate keeping the water temp too warm so I had to add this to keep the water clean for a few weeks. It worked just like liquid chlorine does and is a little cheaper. I liked it and it worked for me.
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