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 5365 reviews
(4.5)|
5,365 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
stars5,365 ratings1,405 reviews
How item rating is calculated
  1. 5 stars79% (4,220)
  2. 4 stars9% (474)
  3. 3 stars4% (200)
  4. 2 stars2% (95)
  5. 1 star7% (376)

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Showing 1-3 of 1,405 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?c5f98320-0b0d-11f1-85c1-b9be452911c7492355590
Aug 10, 2025
Rachel
Item details
Size: 8 oz
Multipack quantity: 1
4 out of 5 stars review

Verified Purchase

the tabs work great, my 1st year using them and i like how they dissolve slowly. i used to just put liquid chlorine in and sunce using these i havent had to put any liquid in. they keep my 18' round pool at perfect chlorine levels. however, the stupid box. i have arthritis in both my hands and carpal tunnel so it is literally impossible to open the darn box. I have to grab tools to open the stupid box and my hands hurt all day afterwards. I will be looking for a product that doesnt require me to injure myself just to open it

Helpful?c5f98320-0b0d-11f1-85c1-b9be452911c7492355590
Jan 20, 2026
Candace
Top Reviewer
Item details
Size: 8 oz
Multipack quantity: 1
3 out of 5 stars review

Verified Purchase

This item was **exactly what I needed**, and I'm so glad I was able to find it! It works perfectly and does exactly what it's supposed to. The **price was great**, making it an even better purchase. Overall, I'm very happy with it and would definitely recommend it to anyone looking for a reliable item at a good value.

Helpful?c5f98320-0b0d-11f1-85c1-b9be452911c7492355590

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