SKU: 89137118538

HTH® Pool Care Chlorine Granules Ultra

Sale price$31.49 Regular price$34.99
Save 10%

Pay in installments of $8.75 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 1 - Sep 6

Promo Codes Available:

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.0 ★★★★★
Based on 5 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
S
Verified Purchase
Susan K Anderson
Waukegan, US
★★★★★ 5
Men’s mock golf shirt
Color: Lake Green, White, Black, Size: XX-Large
Fit & quality very good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
G
Verified Purchase
Garfield S
Alexandria, US
★★★★★ 5
Nice Fit
Color: Black, White, Light Gray, Size: 3X-Large
I picked this up looking for something simple but clean, and it delivered. The fit is comfortable, the material feels solid, and it looks good without needing much effort. It’s one of those pieces you can throw on and still look put together.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
R
Rob75432
New York, US
★★★★★ 4
Good value, soft and comfortable
Color: Black, Army Green, Light Gray, Size: 4X-Large, Color: Black, Army Green, Light Gray, Size: 4X-Large
Initial thoughts are very positive with this 3 pack shirt set. The green is similar to an OD military green and the black and gray are standard color shades. Material is soft and sizes are true to size. The mock turtleneck isn’t too tight but may still be a little annoying to some people. I do question the amount of spandex in these shirts. Tag says 5% but these shirts are extremely stretchy and feels like a higher spandex content. It’s also a little tough to figure out which way is the front of the shirt. Visually rhe front does have a lower collar line than the back but would still be nice to have a brand tag printed in the back of the shirt for quicker identification. Overall for roughly $12 a shirt these are a good choice for everyday wear. I will update rating if these shirts fail to meet expectations after further use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2025
E
Verified Purchase
Eliot
Phoenix, US
★★★★★ 5
👍🏻
Color: Black, Army Green, Light Gray, Size: 5X-Large
Weirdly thick material, I wasn’t a fan but it’s a good sleep shirt
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
D
Verified Purchase
Dr. DeeJaye
Grantham, US
★★★★★ 5
Just what I wanted.
Color: Black, Navy Blue, Wine Red, Size: 5X-Large
These may have just become my standard shirt to wear. Feels good whether tucked or out. Drapes well and fits well. So far, I can see it adjust to the different undershirt I may wear. Will probably order another set in other colors and a back up set of the basics because they will get worn a lot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 17, 2025

recommand products