SKU: 89137118538

HTH® Pool Care Chlorine Granules Ultra

Sale price$31.49 Regular price$34.99
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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For Your Every Summer RSVP, with Code: SUMMER15

Description

HTH® Pool Care Chlorine Granules UltraGet the ultimate in pool care convenience with this all in one Cal Hypo formula. It sanitizes, controls algae, clarifies, softens pool water and even prevents stain and scale to keep your pool clean, clear and ready for summer fun. All in one sanitizer and shock treatment Kills bacteria and algae Softens, clarifies and prevents stain and scale Visibly sparkling blue water in 24 hours Visibly brilliant sparkle This Cal Hypo based formula sanitizes and

Get the ultimate in pool care convenience with this all-in-one Cal Hypo formula. It sanitizes, controls algae, clarifies, softens pool water and even prevents stain and scale to keep your pool clean, clear and ready for summer fun.

  • All-in-one sanitizer and shock treatment
  • Kills bacteria and algae
  • Softens, clarifies and prevents stain and scale
  • Visibly sparkling blue water in 24 hours

Visibly brilliant sparkle

This Cal Hypo based formula sanitizes and shock treats without adding cyanuric acid (CYA) to prevent overstabilizaiton or chlorine lock.

Compatible with all pools

This product is great for all pool types including vinyl-lined pools and saltwater systems.

Multifunctional, fast acting

The all-in-1 pool treatment has built-in algae control, pool water clarifier, stain and scale preventer, water softener and filter aid—all with visible sparkling blue results in 24 hours!

You’re all clear with HTH®

For best results, use HTH® 6-Way Test Strips twice weekly to test and balance your swimming pool water and keep chlorine levels between 1 and 4 ppm.

How to use

HTH® Chlorine Granules Ultra

1. Measure Correct Dosage

Follow the on-pack instructions according to the size of your pool. Make sure to use a clean, dry scoop.

2. Apply Directly To Pool Water

While the filter pump is running during the evening, apply chlorine granules evenly over a wide area in the deepest part of the pool. Use a brush to disperse any granules that fall to the bottom of the pool.

3. Test Free Available Chlorine (FAC)

After granules have dissolved completely, use HTH® 6-Way Test Strips to test FAC. Do not enter your pool until the free available chlorine residual is 1 to 4 ppm (parts per million).

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 89137118538

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4.8 ★★★★★
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B
Verified Purchase
B from RI
Omaha, US
★★★★★ 5
One of the best deals available!
Color: White, Size: 2 Pack
Extremely sturdy, good looking and easy to install. I have a couple of dozen feet of assorted lengths in the kitchen, bedroom, living room and foyer. Holding all sorts of antique clocks, audio equipment and cooking stuff from my flours and assorted cornmeals to cases of powdered “lemonade”.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
J
Verified Purchase
JJW
San Leandro, US
★★★★★ 3
Mounting system doesn’t align on one of three shelves.
Color: Walnut, Size: 3 Pack
Nice shelves. Install was super easy except on one of the three shelves. The main mounting shelf holes were off so the shelf will not slip onto horizontal mounting poles unless I modify the shelf. So a 20 minute job becomes a two hour job. The mounting system does appear very sturdy just not aligned.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026
M
Verified Purchase
mvb
Carnegie, US
★★★★★ 5
Simple, easy, and strong
Size: 16 Inch, Color: White
Kind of on the smaller side but for the price it’s just fine. Easy to install with just a screw driver if you can miss a stud, else you’ll need a drill. Strong enough to hold what a normal person would put on a shelf that size. No worries and it looks great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2026
K
Verified Purchase
Kindle Customer
Charlottesville, US
★★★★★ 5
Great shelves
Size: 24 Inch, Color: White, Size: 24 Inch, Color: White
Pretty easy to put up. Love the way it looks.
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Reviewed in the United States on April 30, 2026
D
Verified Purchase
Daisy l.
Birmingham, US
★★★★★ 5
Love these
Size: 16 Inch, Color: White, Size: 16 Inch, Color: White
I love these shelves! The look good and the installation was super easy! They also seem very durable!
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Reviewed in the United States on May 7, 2026

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