9.4Our score 4 photosMultifunctional pool shock with algae-fighting crystals
Ranked #99 in Garden & Patio · 4 things we like
Quick answer The Clorox Pool&Spa 33512CLX Pool Shock XtraBlue scores 9.4/10 with us. Amazon owners rate it 4.7 out of 5 across 5,258 reviews, above the 4.4 average of the 35 chlorine we track. It was listed at $77.95 on Amazon when we last checked in September 2026.
Enjoying your beautiful pool just got easier with the convenience and power of Shock XtraBlue. Other pool shocks stop at clearing a cloudy pool, but Clorox Pool&Spa Shock XtraBlue goes beyond other shocks to keep your water beautiful and swim-ready all season. The fast dissolving pool shock formula not only removes the bacteria and contaminants that can cause cloudy water, Shock XtraBlue also helps control algae growth including common green algae, slimy mustard algae, and stubborn black algae.
It works this hard for you without bleaching your liner or affecting pH like other brands of pool shock. Use Shock XtraBlue as part of your weekly maintenance for sparkling, crystal clear water all season long.
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| Brand Name | CLOROX Pool&Spa |
|---|---|
| Number of Packs | 12 |
| Package Size Name | 12 Pack |
| Number of Items | 1 |
| Unit Count | 192 Ounce |
| Included Components | Includes: 1 x Pool&Spa 33512CLX Pool Shock XtraBlue (12 1-lb Bags) |
| Item Type Name | Shock XtraBlue® (12 1-lb BAGS) |
|---|---|
| Model Number | 33512CLX |
| Item Form | Powder |
| Product Benefits | Kills Bacteria |
| Item Weight | 12 pounds |
Yes, it is one of the stronger picks in its group. We score the Clorox Pool&Spa 33512CLX Pool Shock XtraBlue 9.4 out of 10. Amazon owners rate it 4.7 out of 5 across 5,258 reviews, above the 4.4 average of the 35 chlorine we track.
It was listed at $77.95 on Amazon when we last checked in September 2026. That is close to 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.
Similar, well-rated chlorine in our catalog: CLOROX Pool&Spa Clorox® Pool&Spa™ Shock XTRABLUE® Plus (9.4/10, 4.7 stars from 5,177 owners); by CLOROX Pool&Spa Format: Lawn & Patio Clorox® Pool&Spa™ Shock Clear (9.4/10, 4.7 stars from 2,326 owners); Clorox Pool&Spa XTRABLUE 3” Chlorinating Tablets (9.0/10, 4.5 stars from 38,730 owners).
CLOROX Pool&Spa Clorox® Pool&Spa™ Shock XTRABLUE® Plusby CLOROX Pool&Spa Format: Lawn & Patio Clorox® Pool&Spa™ Shock ClearClorox Pool&Spa XTRABLUE 3” Chlorinating Tablets
Alternatives to the Clorox Pool&Spa 33512CLX Pool Shock XtraBlue
7.4【Effortless Water Sanitization with Advanced Salt Chlorination】This Pool Salt Chlorinator utilizes cutting-edge electrolysis technology to c
9.4Powerful Chlorination: BioGuard SilkGuard Complete 3” Chlorinating Tablets provide effective and long-lasting chlorination for swimming pool
9.6100% pure, certified USP-Grade salt produced specifically for swimming pool and spa chlorine generators
8.8Complete salt chlorination system delivers reliable, automatic chlorine generation for sparkling water with less maintenance and lower long-
8.8Dual Action Sanitizer and Shock - Clorox Pool&Spa All-in-One XtraBlue Chlorinating Granules can be used to sanitize and shock your pool wate
9.0Cleans Water & Stops Algae: Kills harmful bacteria and prevents equipment corrosion, scale and stains. Kills and prevents all types of swimm
9.4
9.46 in 1 Formula: Kills bacteria and algae to maintain a clear swimming pool. Our algae-fighting formula prevents algae for crystal-clear wate
9.4Prolongs Chlorine Effectiveness: The Chlorine Stabilizer protects your pool's chlorine from the damaging effects of the sun's harsh UV rays,
7.8Fast Dissolving Formula Dissolves quickly for faster circulation.
9.4Non-Chlorine Oxidizing Pool Shock: Powerful oxidizer that eliminates chloramines and boosts free chlorine levels for a cleaner, fresher pool
9.2Calcium-Free Chlorine Shock for Pools: Leaves behind no residue/clouds in your swimming pool; great for salt- and liquid-chlorine-based pool
9.4Fast-Acting Pool Shock: Instantly boosts chlorine levels to eliminate algae and contaminants, keeping your pool crystal clear.
9.0Generates chlorine automatically during daily pool operation, keeping water clean and sanitized.
8.8Dual Action Sanitizer and Shock - Clorox Pool&Spa All-in-One XtraBlue Chlorinating Granules can be used to sanitize and shock your pool wate
9.2Test Like an Expert: Maintain perfectly balanced pool water with 6-Way Multi-Use Test Strips and the complimentary Clorox Pool app. The app
9.0Cleans Water & Stops Algae: Kills harmful bacteria and prevents equipment corrosion, scale and stains. Kills and prevents all types of swimm
9.46 in 1 Formula: Kills bacteria and algae to maintain a clear swimming pool. Our algae-fighting formula prevents algae for crystal-clear wate
9.0Pool Algae Treatment: Our Pool Algaecide and Clarifier is specially formulated to treat existing algae while providing long-lasting defense
9.2Fast-Acting Algae Treatment: Clorox Pool & Spa Swimming Pool Algaecide helps prevent and treat green pool algae quickly and controls algae g
9.4Prolongs Chlorine Effectiveness: The Chlorine Stabilizer protects your pool's chlorine from the damaging effects of the sun's harsh UV rays,
9.2Clears Cloudy Water: Clorox Pool&Spa Swimming Pool Crazy Clarifier ensures insanely clear water. This super-charged pool clarifier maintains
9.4Lowers High pH: Clorox Pool&Spa Swimming Pool pH Down is formulated to restore neutral pH in pool water. By decreasing pH levels, it helps r
9.2Super Water Clarifier: Clorox Pool&Spa Swimming Pool Super Water Clarifier is a concentrated solution that clears dull, hazy, or cloudy pool
9.2All-in-One Algae Killer: Clorox Pool&Spa XtraBlue Swimming Pool Algaecide kills algae in just 24 hours. This fast-acting treatment effective