9.2Our scoreGet long-lasting protection from extreme algae; This non-foaming algae control kills and prevents blooms of all algae types
Ranked #99 in Garden & Patio · 4 things we like
Quick answer The HTH 67244 scores 9.2/10 with us. Amazon owners rate it 4.6 out of 5 across 400 reviews, in line with the 4.6 average of the 8 pool algaecides we track. It was listed at $26.98 on Amazon when we last checked in September 2026.
Get long-lasting protection from extreme algae. Our strongest, non-foaming algae control kills blooms and prevents regrowth for up to 3 months. HTH Algae Guard Ultra is HTH's strongest algae control.
It kills, prevents and protects against regrowth of heavy green, black and mustard swimming pool algae for up to 3 months. Its compatible with all pools. The non-staining formula is great for all swimming pools including vinyl-lined and salt water systems.
It non-foaming and fast-acting formula means you can add HTH Algae Guard Ultra directly to your swimming pool water and swim right away! For best results, use HTH Algae Guard Ultra every 3 months in combination with other HTH products like HTH shock and HTH chlorine tablets. About the Brand: HTH was developed for consumers with economical and powerful products for the toughest jobs.
HTH and its sister brands offer everything you need for y
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| Brand Name | HTH |
|---|---|
| Package Size Name | 32oz |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Item Highlight | Long Lasting Formula; Eliminates & Prevents Green, Black, and Mustard Algae; Fast Acting & Effective Swimming Pool Chemi |
| Item Type Name | Swimming Pool Algaecide |
|---|---|
| Model Number | 67244 |
| Item Form | Liquid |
| Product Benefits | Kills Algae, Prevents Algae Growth |
| Item Weight | 2 pounds |
Yes, it is one of the stronger picks in its group. We score the HTH 67244 9.2 out of 10. Amazon owners rate it 4.6 out of 5 across 400 reviews, in line with the 4.6 average of the 8 pool algaecides we track.
It was listed at $26.98 on Amazon when we last checked in September 2026. That is cheaper than the $34.94 median for pool algaecides in our catalog. Amazon prices change daily, so use the price button on this page to see the current figure.
Amazon lists 4 options. Size: No Size (Pack of 2), 32oz, No Size. Style: Green to Blue, Ultra Algaecide, Advanced Algaecide. Pick an option on this page and the button opens exactly that model.
Similar, well-rated pool algaecides in our catalog: CLOROX Pool&Spa Clorox® Pool&Spa™ Swimming Pool Algaecide (9.2/10, 4.6 stars from 9,773 owners); CLOROX Pool&Spa Clorox® Pool&Spa™ XTRABLUE® Plus Swimming Pool (9.2/10, 4.6 stars from 2,459 owners); CLOROX Pool&Spa Clorox® Pool&Spa™ Swimming Pool Algaecide and (9.0/10, 4.5 stars from 16,220 owners).
CLOROX Pool&Spa Clorox® Pool&Spa™ Swimming Pool AlgaecideCLOROX Pool&Spa Clorox® Pool&Spa™ XTRABLUE® Plus Swimming PoolCLOROX Pool&Spa Clorox® Pool&Spa™ Swimming Pool Algaecide and
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