HTH 3-inch Advanced Chlorine Tablets — Tablet, 5 lb — Pool Sanitizer for Routine Chlorination
HTH 3-inch Advanced Chlorine Tablets — Tablet, 5 lb — Pool Sanitizer for Routine Chlorination
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HTH 3-inch Advanced Chlorine Tablets — Tablet, 5 lb — Pool Sanitizer for Routine Chlorination

4.5 stars out of 5077 reviews
(4.5)|
5,077 ratings
HTH 3-inch Advanced Chlorine Tablets — Tablet, 5 lb — Pool Sanitizer for Routine ChlorinationHTH Pool Care 3 Chlorine Tablets Advanced for Swimming Pools Tablets 5 lbs2 pack HTH Pool Care 3 Chlorine Tablet Advanced for Swimming Pools 8oz Single TabletHTH Pool Care 3 Chlorine Tablet Advanced for Swimming Pools 8oz Single TabletHTH Pool Care 3 Chlorine Tablets Advanced for Swimming Pools Tablets 25 lbs2 pack HTH Pool Care 3 Chlorine Tablets Advanced for Swimming Pools Tablets 25 lbs2 pack HTH Pool Care 3 Chlorine Tablets Advanced for Swimming Pools Tablets 5 lbs
Size:5 lbs
Pack Size:Single

Key item features

  • Triple Action: These 3-inch advanced chlorine tablets function as a sanitizer, clarifier, and algaecide, effectively destroying bacteria and algae for clean pool water.
  • Extended Protection: Sun-protected for longer chlorine life, these slow-dissolving tablets last up to one week, providing continuous pool sanitation.
  • Versatile Application: Designed for use in a floater, feeder, or skimmer basket, these tablets are suitable for all swimming pool types, including vinyl-lined and saltwater systems.
  • Simple Dosing: Each convenient one-dose tablet treats 10,000 gallons of water, simplifying routine chlorination.
  • Clear Water: The tablets contribute to clear blue water by protecting against bacteria, algae, and other organisms.
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Current price is Now $39.97
You save $5.02
was $44.99
$7.99/lb
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4.5 out of 5 stars
stars5,077 ratings1,381 reviews
How item rating is calculated
  1. 5 stars79% (3,992)
  2. 4 stars9% (444)
  3. 3 stars4% (189)
  4. 2 stars2% (88)
  5. 1 star7% (364)

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Showing 1-3 of 1,381 reviews

Nov 20, 2025
anonymous
Top Reviewer
Item details
Size: 25 lbs
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Will not disappoint!

This a great product and I do recommend it. The container itself has many great features. First, the container is fantastic. It's a tub with an open/close lid that protects the product and seals in the chemical smells of chlorine. We've been using this product for six months without any issues. It dissolves properly in the chlorine dispenser and doesn't produce algae.

Helpful?5OQ6T5A066UC492355590
Aug 31, 2025
anonymous
Item details
Size: 25 lbs
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Ten tabs per container

There are TEN (10) 3 inch tablets in container I received. Nobody thought that was Important to put on the Made in China label. These work with the Large model pool floating dispensers. No issue with product. They are NOT individually Wrapped items so expect some breakage during shipping. You can compare prices against the HTH 2 pk, not sure what those cost. They usually last a week. Good to Go so far

Helpful?5OQ6T5A066UC492355590
Aug 7, 2025
BigDennis1957
Top Reviewer
Item details
Size: 8 oz
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Quality HTH Chlorine Tablets

I've used HTH products for decades and have found them to be reasonably priced, high quality and very effective. These 3” chlorine tablets are no different and work extremely well in my pool to both sanitize and repel algae. I definitely recommend this product to others!

Helpful?5OQ6T5A066UC492355590

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