9.4Our score 4 photosSanitizer, clarifier, and algaecide to protect your swimming pool and swimmers with one easy, convenient, and individually wrapped 3-inch ta
Ranked #99 in Garden & Patio · 4 things we like
Quick answer The HTH 42052W scores 9.4/10 with us. Amazon owners rate it 4.7 out of 5 across 5,127 reviews, above the 4.4 average of the 35 chlorine we track. It was listed at $38.15 on Amazon when we last checked in September 2026.
The HTH 3 Individually Wrapped Chlorine Tabs Advanced are a game-changer for pool owners who want to keep their pool water crystal clear and healthy for swimmers. With one easy and convenient tablet, you get a sanitizer, clarifier, and algaecide, protecting your pool and swimmers. This advanced formula is designed to sanitize, clarify, and kill algae for beautiful and clean water all season long.
The slow-dissolving, long-lasting formula is sun-protected for longer chlorine life, dissolving slowly and lasting up to one week. These tabs are compatible with all pool types, including vinyl-lined pools and saltwater systems, and can be used in a floater, feeder, or skimmer basket. 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.
With HTH, you're all clear!
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| Brand Name | HTH |
|---|---|
| Global Trade Identification Number | 00073187900005 |
| Number of Packs | 1 |
| Number of Items | 1 |
| Unit Count | 1 Count |
| Item Highlight | Individually Wrapped Tablets; Swimming Pool Sanitizer with Clarifier & Algaecide; Destroys Bacteria & Algae |
| Item Type Name | Chlorine Tablets |
|---|---|
| Model Number | 42052W |
| Item Form | Tablet |
| Product Benefits | Controls Algae, Kills Bacteria, Maintains Clean Sanitized Water |
| Item Weight | 5 pounds |
Yes, it is one of the stronger picks in its group. We score the HTH 42052W 9.4 out of 10. Amazon owners rate it 4.7 out of 5 across 5,127 reviews, above the 4.4 average of the 35 chlorine we track.
It was listed at $38.15 on Amazon when we last checked in September 2026. That is cheaper than the $78.97 median for chlorine in our catalog. Amazon prices change daily, so use the price button on this page to see the current figure.
Amazon lists 5 options. Style: Advanced Tablets, Concentrated Tablets, Ultra Tablets. Size: 5 lbs, 8 lbs, 30 lbs, 25 lbs. Pick an option on this page and the button opens exactly that model.
Similar, well-rated chlorine in our catalog: HTH 52036R (9.4/10, 4.7 stars from 14,678 owners); AQUASALT Swimming Pool and Spa Chlorine Generator Salt (9.4/10, 4.7 stars from 1,702 owners); HTH 52047 (9.4/10, 4.7 stars from 829 owners).
HTH 52036RAQUASALT Swimming Pool and Spa Chlorine Generator SaltHTH 52047
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