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

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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4.5 out of 5 stars
stars6,305 ratings1,477 reviews
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Showing 1-3 of 1,477 reviews

May 6, 2026
Jydon
Item details
Size: 25 lbs
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Love this Product

I am on my 3rd year of using this product! Although my pool is small, it is not covered and I get a lot of pollen, dirt, and leaf debrie I have not once had an algae problem because this product works! It keeps algae away, PH balance is good, very good product.

Helpful?c5f98320-0b0d-11f1-85c1-b9be452911c7492355590
May 15, 2026
Robert
Top Reviewer
Walmart Associate
Item details
Size: 25 lbs
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Helps keep pool sanitized %26 clear

I use this every summer in my pool. Dissolves slowly over a weeks time. Helps keep water sanitized and clear. Low chlorine odor. The cost of these has increased significantly over the past few years.

Helpful?c5f98320-0b0d-11f1-85c1-b9be452911c7492355590
Mar 21, 2026
samantha
Top Reviewer
Item details
Size: 5 lbs
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

I've been using the HTH 3-inch Advanced Chlorine Tablets 5 lb Bucket for a few years now, and they've been consistently reliable. They do a great job keeping my pool water clean, clear, and well-balanced without a lot of extra effort. What I like most is how slowly they dissolve. I can drop them in the floater or chlorinator and not have to worry about constantly checking or adding more every day. They maintain a steady chlorine level and really help prevent algae, even during the hotter months. Over the years, I've found them to be a dependable, no-hassle option for regular pool maintenance. I also like that they combine sanitizing and algae control, which saves time and keeps things simple. The only small downside is that occasionally you'll get a few broken tabs or some chlorine dust in the bucket, but it hasn't affected performance for me. Overall, after using these for years, I can confidently say they're a solid, go-to product if you want something effective and easy to use.

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