HTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools
HTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools
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HTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools

4.6 stars out of 648 reviews
(4.6)|
648 ratings
HTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming PoolsHTH Pool Care 3 Chlorine Tablets Advanced for Swimming Pools 6oz
Count Per Pack:1

Key item features

  • Triple Action: This advanced formula sanitizes, clarifies, and protects swimming pools against algae, providing clear blue water all season.
  • Extended Longevity: Slow-dissolving, 6 oz tablets are sun-protected for longer chlorine life, lasting up to one week per application.
  • Versatile Application: Designed for use in a floater, feeder, or skimmer basket, these tablets are compatible with all pool types, including vinyl-lined and saltwater systems.
  • Effective Sanitization: Kills algae and bacteria, safeguarding the swimming pool against various organisms for clean and clear water.
  • Simple Dosage: Each convenient 1-week dosage treats 10,000 gallons, with one tablet placed in the skimmer, floater, or feeder.
  • Maintenance Recommendation: For optimal results, use HTH 6-Way Test Strips twice weekly to balance water and maintain chlorine levels between 1 and 4 ppm.
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Current price is $5.9799.5 ¢/oz
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HTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools $5.97 99.5 ¢/oz

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HTH 3-inch Chlorine Tablet Advanced — Tablet, 6 oz — Pool Sanitizer for Swimming Pools

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Customer ratings & reviews

4.6 out of 5 stars
stars648 ratings254 reviews
How item rating is calculated
  1. 5 stars82% (530)
  2. 4 stars8% (49)
  3. 3 stars4% (24)
  4. 2 stars1% (9)
  5. 1 star6% (36)

Reviews summary

Pros
  • : Accommodates various floating dispensers and pool sizes.
  • : Maintains stable chlorine levels in pool water.
  • : Requires minimal effort to use.
  • : Dissolve slowly over a week or more.
  • : Keeps pool clean with minimal upkeep.
Neutral
  • : Offers great value, but can be steep for some.
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Showing 1-3 of 254 reviews

Nov 2, 2025
Jared
Item details
Count per pack: 1
5 out of 5 stars review

Verified Purchase

These are all I'll ever use

I use these all the time, but I switched to a cheaper brand. I got off Amazon and I was regretting it within a month. I had to fight the algae twice as hard with these cheap no brand Amazon chlorine tablet I went back to the HTH tablets and my water is crystal clear again. I won't I won't ever use anything but again.

Helpful?4Q7GUQWH2WAH2104660589
Jul 19, 2025
Andrea
Item details
Count per pack: 1
5 out of 5 stars review

Verified Purchase

These chlorine tablets do good. Just don't drop these or any other chlorine tablets into your pool without first putting them into a chlorine dispenser. I learned that the hard way.

Helpful?4Q7GUQWH2WAH2104660589
Sep 30, 2025
Cody
Item details
Count per pack: 1
5 out of 5 stars review

Verified Purchase

Great really works

I have used the Clorox brand and th other brand they sell but this one is the best one of them all. This brand is the only one that kept my pool crystal clear, even with Clorox it turned cloudy an green not with this.

Helpful?4Q7GUQWH2WAH2104660589