HTH Pool Care Chlorine Granules, Pool Chemical Sanitizer, 5 lbs, for Daily Chlorination
HTH Pool Care Chlorine Granules, Pool Chemical Sanitizer, 5 lbs, for Daily Chlorination
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HTH Pool Care Chlorine Granules, Pool Chemical Sanitizer, 5 lbs, for Daily Chlorination

4.5 stars out of 203 reviews
(4.5)|
203 ratings

Key item features

  • All-in-One Treatment: This Cal Hypo formula acts as a sanitizer and shock treatment, killing bacteria and algae while also clarifying, softening, and preventing stain and scale in pool water.
  • Rapid Clarity: Achieve visibly sparkling blue water within 24 hours, ensuring your pool is clean and ready for enjoyment quickly.
  • CYA-Free Formula: The Cal Hypo based formula provides chlorination without adding cyanuric acid (CYA), preventing overstabilization or chlorine lock.
  • Multifunctional Action: Beyond sanitizing, it includes built-in algae control, a water clarifier, stain and scale prevention, a water softener, and a filter aid.
  • Universal Compatibility: Suitable for all pool types, including vinyl-lined pools and salt water systems, offering versatile application.
  • Usage Guidance: Apply granules evenly in the deepest part of the pool while the filter pump is running, then test chlorine levels with HTH 6-Way Test Strips.
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Current price is Now $33.97
You save $10.15
was $44.12
$6.79/lb
Price when purchased online
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Whitehall Supercenter
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4.5 out of 5 stars
stars203 ratings88 reviews
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Showing 1-3 of 88 reviews

Jul 25, 2025
Walmart customer
Top Reviewer
Item details
Count per pack: 1
5 out of 5 stars review

Verified Purchase

Easy maintenance for clean water

Very easy maintenance that cleans our hot tub very well. I just fill up the cap 1-3 times depending on the condition of the water and it always cleans it. With a 220 gallon hot tub, the container lasts us the entire year, but obviously we don't use it much for about half the year with the summer heat.

Helpful?22LTCBWIM0SG678992843
Sep 8, 2025
David
Item details
Count per pack: 1
5 out of 5 stars review

Verified Purchase

Use HTH for a great pool.

Great pool product. HTH is the only product we will use! So happy Walmart carries it. Please continue.

Helpful?22LTCBWIM0SG678992843
Mar 29, 2025
anonymous
Item details
Count per pack: 1
5 out of 5 stars review

Verified Purchase

Safe, Beautiful Spa Water

I've used HTH Granules in my swim spa for several years now. It keeps the water crystal clear and I rarely have to use any other chemicals. I highly recommend it.

Helpful?22LTCBWIM0SG678992843