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

4 stars out of 294 reviews
(4.0)|
294 ratings

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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Current price is Now $40.47
You save $14.19
was $54.66
53.3 ¢/oz
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Comparison Chart:
FormTabletsHTH Brilliance Cal Hypo Chlorine Tablets for Swimming Pools, Chlorine Pool Chemicals, 4.75lbTabletsHTH 3-inch Chlorine Tablets — Tablet, 5 lb — Pool Sanitizer for Bacteria and Algae ControlTabletsClorox Pool&Spa XtraBlue 3" Chlorinating Tablets Chlorine Pool Chemicals , 5lbGranulesClorox® Pool&Spa™ All-in-One® XtraBlue Chlorine Pool Chemicals Chlorinating Granules, 6 lbTabletsARM & HAMMER Clear Balance Swimming Pool Alkalinity pH Maintenance Tablets, White, 1 Pack, 24 CountLiquidSplash Liquid Pool Shock Chlorinator 10% Sodium Hypochlorite for Algae and Bacteria Control
Pool chemical typeChlorine Pool ChemicalsHTH Brilliance Cal Hypo Chlorine Tablets for Swimming Pools, Chlorine Pool Chemicals, 4.75lbChlorine Pool ChemicalsHTH 3-inch Chlorine Tablets — Tablet, 5 lb — Pool Sanitizer for Bacteria and Algae ControlChlorine Pool ChemicalsClorox Pool&Spa XtraBlue 3" Chlorinating Tablets Chlorine Pool Chemicals , 5lbChlorine Pool ChemicalsClorox® Pool&Spa™ All-in-One® XtraBlue Chlorine Pool Chemicals Chlorinating Granules, 6 lbPool Water BalancersARM & HAMMER Clear Balance Swimming Pool Alkalinity pH Maintenance Tablets, White, 1 Pack, 24 CountSwimming Pool ShockSplash Liquid Pool Shock Chlorinator 10% Sodium Hypochlorite for Algae and Bacteria Control
Weight4.75 lbHTH Brilliance Cal Hypo Chlorine Tablets for Swimming Pools, Chlorine Pool Chemicals, 4.75lb-HTH 3-inch Chlorine Tablets — Tablet, 5 lb — Pool Sanitizer for Bacteria and Algae Control5 lbClorox Pool&Spa XtraBlue 3" Chlorinating Tablets Chlorine Pool Chemicals , 5lb6 lbClorox® Pool&Spa™ All-in-One® XtraBlue Chlorine Pool Chemicals Chlorinating Granules, 6 lb10.5 lbARM & HAMMER Clear Balance Swimming Pool Alkalinity pH Maintenance Tablets, White, 1 Pack, 24 Count10 lbSplash Liquid Pool Shock Chlorinator 10% Sodium Hypochlorite for Algae and Bacteria Control
Rec. useSwimming PoolHTH Brilliance Cal Hypo Chlorine Tablets for Swimming Pools, Chlorine Pool Chemicals, 4.75lbSwimming PoolHTH 3-inch Chlorine Tablets — Tablet, 5 lb — Pool Sanitizer for Bacteria and Algae ControlSwimming PoolClorox Pool&Spa XtraBlue 3" Chlorinating Tablets Chlorine Pool Chemicals , 5lbSwimming PoolClorox® Pool&Spa™ All-in-One® XtraBlue Chlorine Pool Chemicals Chlorinating Granules, 6 lbSwimming PoolARM & HAMMER Clear Balance Swimming Pool Alkalinity pH Maintenance Tablets, White, 1 Pack, 24 CountSwimming PoolSplash Liquid Pool Shock Chlorinator 10% Sodium Hypochlorite for Algae and Bacteria Control
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HTH Brilliance Cal Hypo Chlorine Tablets for Swimming Pools, Chlorine Pool Chemicals, 4.75lb $40.47 Was $54.66 53.3 ¢/oz

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Customer ratings & reviews

4 out of 5 stars
stars294 ratings147 reviews
How item rating is calculated
  1. 5 stars69% (204)
  2. 4 stars6% (19)
  3. 3 stars3% (10)
  4. 2 stars4% (12)
  5. 1 star17% (49)

Reviews summary

Pros
  • : Offers excellent performance at a reasonable cost.
  • : Produces clear water within a short time.
  • : Constructed with durable and premium materials.
  • : Has a non-overpowering chlorine scent.
Neutral
  • : Can be effective, but may clog or leave residue.
Cons
  • : Tablets take longer to dissolve, potentially requiring more frequent adjustments.
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Showing 1-3 of 147 reviews

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
Jul 9, 2025
Michael
3 out of 5 stars review

Verified Purchase

Chlorine Tabs

These don't disolve well. I see no difference between the cal-hypo and there regular chlorine tabs in effectiveness. My only problem is they don't seem to disolve well and I've seen undissolved particles coming out of the water return.

Helpful?5PTY6B132NR46952024699
reply from HTH Pools Team

Hi Michael, thank you for sharing your feedback. Please know that it is greatly valued, and we apologize for the delay in response. Technical difficulties prevented us from seeing your review when it was posted. There are several factors that can impact the way these tablets dissolve and cause residue to end up in the pool. Please give us a call so we can have a better understanding of your experience with the tablets and help you get them to work as designed. You can reach us at 866-484-7665 or chat with us at hthpools.com. We're Here to Help!

Sep 2, 2025
Ralph
Sold and shipped byM.O.S. Hardware
3 out of 5 stars review

Verified Purchase

Avoid using In tri-chlor feeder

I tried to use this in a Tri-Chlor feeder thinking it was just another tablet...wrong! Perhaps I should have know that but it was a disaster. Eventually, these tablets clogged my Pentair unit completely leaving a mushy residue inside. I managed to clean it out with effort. So, this might be a great product used some other way but not in my system. To be fair, the container says to use the product in a Cal Hypo feeder but I only noticed that after the fact and those feeders are 3-4 times more expensive. So I continue on my quest to find a convient, CYA free approach.

Helpful?5PTY6B132NR46952024699