HTH Brilliance Cal Hypo Chlorine Tablets for Swimming Pools, Chlorine Pool Chemicals, 4.75lb
HTH Brilliance Cal Hypo Chlorine Tablets for Swimming Pools, Chlorine Pool Chemicals, 4.75lb
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HTH Brilliance Cal Hypo Chlorine Tablets for Swimming Pools, Chlorine Pool Chemicals, 4.75lb

Key item features

  • Effective Sanitization: HTH Brilliance Cal Hypo Chlorine Tablets effectively destroy bacteria, prevent algae, and remove contaminants in your pool.
  • Chlorine Stability: These tablets sanitize without the risk of chlorine lock or over-stabilization, as they contain no cyanuric acid (CYA).
  • Exceptional Clarity: Achieve sparkling blue pool water with exceptional clarity compared to traditional chlorine products, with just one dose lasting per week.
  • Slow Dissolving: Brilliance tablets dissolve slowly and act quickly, providing long-lasting, sparkling results.
  • Versatile Use: Suitable for all pool types, including vinyl-lined pools and saltwater systems.
  • Enhanced Performance: For best results, use with HTH Brilliance Chlorine Floater or HTH Brilliance Skimmer Basket Insert.
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Customer ratings & reviews

4.2 out of 5 stars
stars386 ratings197 reviews
How item rating is calculated
  1. 5 stars71% (275)
  2. 4 stars8% (32)
  3. 3 stars3% (13)
  4. 2 stars4% (14)
  5. 1 star13% (52)

Reviews summary

Pros

  • : Features a handle and bucket for transport and application.
  • : Offers excellent performance and durability at this price point.
  • : Produces water with high transparency in a short time.
  • : Has a non-overpowering chlorine scent.

Neutral

  • : Can be effective with proper use, but may not dissolve cleanly or consistently.

Cons

  • : Tablets take longer to dissolve, potentially requiring more frequent adjustments.
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Showing 1-3 of 197 reviews

May 15, 2026
Karissa
5 out of 5 stars review

Verified Purchase

I love the thighs of these tablets. They are considerably bigger than any other tablet, but they still fit in a standard chlorine tablet bobber but they just seem like they are going to last a very long time which is great. Also, they shipped super quickly and I thought they were a great price don't judge, but I totally struggled to open the lid. It's really operator air that has nothing to do with the product. The product was i love the thighs of these tablets. They are considerably bigger than any other tablet, but they still fit in a standard chlorine tablet bobber but they just seem like they are going to last a very long time which is great. Also, they shipped super quickly and I thought they were a great price. Don't judge, but I totally struggled to open the lid. It's really operator error combined with a fancy lid, that has nothing to do with the product the product great. It just made me laugh that it took me a long time to open the lid!

Incentivized Review
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Apr 24, 2025
Nekramer30
5 out of 5 stars review

Verified Purchase

great for opening the pool

I recently purchased HTH Brilliance Cal Hypo Chlorine Tablets, and they are absolutely perfect for opening my pool this season! These tablets are super effective at keeping the water clean and clear right from the start. Each tablet treats a large volume of water, which makes it easy to get everything balanced quickly. I’ve seen a noticeable reduction in algae and bacteria, and the water feels great to swim in. If you're getting ready to open your pool, I highly recommend HTH Brilliance. It’s a must-have for pool care!

Helpful?5PTY6B132NR46952024699
Feb 23, 2026
fishsoup
Top Reviewer
Sold and shipped byMax Warehouse
4 out of 5 stars review

Verified Purchase

unstabilized calcium hypochlorite tablets

first time using calcium hypochlorite tablets after using too many regular trichlor tablets and reaching an excessive stabilizer level. got a new floating dispenser due to the warnings about mixing tablets. 9 unwrapped tablets came in the 5 lb box, they were all in good condition without cracks. only started yesterday so can't really tell a lot. there wasn't a noticeable chlorine smell on opening the box which is a hazard with the trichlor.

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