In The Swim Pool Shock – 68% Cal-Hypo Granular Sanitizer for Crystal Clear Water – Defends Against Bacteria, Algae, and Micro

4.6 4.6 out of 5 stars | 13,839 ratings

Price: 119.99

Last update: 06-22-2024


About this item

Powerful chlorine shock treatment that is great for regular maintenance.
Quickly eliminates algae, bacteria, and other harmful contaminants from your pool water.
Main active ingredient is 68% Calcium Hypochlorite (Cal-Hypo) for quick sanitizing.
Dosage: 1 Pound per 10,000 gallons
Cal-Chlor granules can be used in swimming pools, spas and hot tubs. Must pre-dissolve/dilute to prevent bleaching of the liner.

Product information


Top reviews from the United States

Texas Pops
5.0 out of 5 stars Excellent price, good product, quick delivery.
Reviewed in the United States on May 9, 2024
Product works well. Does what it is intended to do.
MICHAEL J ASSAD
5.0 out of 5 stars Inexpensive substitute pool shock treatment
Reviewed in the United States on May 29, 2024
Inexpensive substitute pool shock treatment compared to competitors. Works the same as others and gives great results.
Robert
5.0 out of 5 stars Works Great, cleared water and killed algae.
Reviewed in the United States on May 7, 2024
Shock works great and the kids were able to swim a few hours later.
K.
4.0 out of 5 stars Cheaper to buy in bulk.
Reviewed in the United States on April 10, 2024
Buying in bulk is cheaper than multiple single punches. The container comes with a measured cup.
Jenny Goodlett
5.0 out of 5 stars Pool supplies
Reviewed in the United States on May 12, 2024
Great product and ease of use.
Ucrazy51
5.0 out of 5 stars Good Quality Chlorine
Reviewed in the United States on June 16, 2024
Convenient 1# bags for easy dosage. Good and fresh chlorine.
Karonoz
5.0 out of 5 stars Great price fast delivery
Reviewed in the United States on May 10, 2024
This gets my pool up and running every year. Got this at an amazing price
Hanna Bope
5.0 out of 5 stars Extremely effective
Reviewed in the United States on April 17, 2024
I’m in absolute disbelief at how well this shock worked. First pic and second pic are about 12 hours apart after application. We tried two separate shock treatments prior to trying this one, the algae was so bad I wasn’t sure it was ever going to clear. After trying this, I won’t ever use a different shock again. I’m so impressed with this, 10/10 recommend.
Customer image
Hanna Bope
5.0 out of 5 stars Extremely effective
Reviewed in the United States on April 17, 2024
I’m in absolute disbelief at how well this shock worked. First pic and second pic are about 12 hours apart after application. We tried two separate shock treatments prior to trying this one, the algae was so bad I wasn’t sure it was ever going to clear. After trying this, I won’t ever use a different shock again. I’m so impressed with this, 10/10 recommend.
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Customer image Customer image

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