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Clorox® Pool&Spa™ Shock XTRABLUE® Plus, Kills Bacteria & Algae in Swimming Pools, Swim-Ready in 15 Minutes, (12-Pack)

  • Based on 3,579 reviews
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Availability: In Stock.
Fulfilled by Amazon

Arrives Oct 11 – Oct 24
Order within 14 hours and 36 minutes
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Size: 12 Pack


Features

  • 6 in 1 Formula: Kills bacteria and algae to maintain a clear swimming pool. Our algae-fighting formula prevents algae for crystal-clear water. Destroys contaminants to aid filter performance and clear dull, cloudy water
  • Swim-ready in 15 minutes: Fast dissolving formula works quickly so you can treat and swim in just 15 minutes.
  • Compatibility: This product is safe for all swimming pool surfaces, including vinyl, plaster, fiberglass, and tile.
  • Usage: Use 1 lb. per 12,000 gallon of water. Shock pool weekly and after heavy use, high temperatures, or rain.
  • Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common pool problems and get personalized product and dosage recommendations.
  • Packaging may vary

Description

Enjoying your beautiful pool just got easier with the convenience and power of Clorox Pool&Spa Shock XtraBlue2. Each bag treats 12,000 gallons of water to clear cloudy, smelly water. This fast-dissolving pool shock kills bacteria and removes swimmer contaminants while helping control algae growth. It will not bleach your liner or affect your water's pH level like other brands. Shock your pool weekly and after pool parties and severe weather to remove contaminants, destroy odors, and keep the water clear. No premixing is required and dissolves fast! Shock day or night! Save time when shocking, as our XtraBlue Shock2 will treat 12,000 gallons of water and you can swim in 15 minutes! Always apply according to label directions. For best results, add to the deepest end of the pool with the filter running. Circulating pool water when applying chemicals helps disperse chemicals throughout the pool for maximum coverage. The best pool shock on the market, use once a week during your weekly maintenance program. Pair with the Clorox Pool app and XtraBlue Chlorinating Tablets for best results.

Brand: Clorox Pool & Spa


Item Weight: 12 Pounds


Item Form: Granular


Product Benefits: Fast-dissolving, Improves filter performance, Kills Bacteria, Kills and prevents algae with algae-fighting formula See more


UPC:


Brand: Clorox Pool & Spa


Item Weight: 12 Pounds


Item Form: Granular


Product Benefits: Fast-dissolving, Improves filter performance, Kills Bacteria, Kills and prevents algae with algae-fighting formula


UPC: 810821024891


Number of Items: 12


Unit Count: 192.0 Ounce


Product Dimensions: 5.38 x 11 x 9.25 inches


Item Weight: 12 pounds


Manufacturer: Clorox Pool&Spa


Item model number: 36112CLX


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Oct 11 – Oct 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Would recommend!
Size: 6 Pack
Convenient packaging makes it easy to add to pool. We use one packet once a week, our pool stays clear and chemicals are good! This helps keep chlorine stable. Love it!!
Reviewed in the United States on August 9, 2025 by Wendy Wycinski

  • Works fantastic
Size: 6 Pack
This is the best product I've found for my pool
Reviewed in the United States on August 9, 2025 by J.A.Y

  • Use this regularly
Size: 12 Pack
I use this pool shock on a regular basis. I ordered from Amazon, rather than buying a my local big box store for the convenience of saving myself a trip. This shock seems to work effectively and is not as expensive as some other brands.
Reviewed in the United States on August 8, 2025 by CaREgal

  • Clear Water
Size: 12 Pack
Not going to lie, I bought these to save money and was nervous since I always buy tabs from an industrial pool supply warehouse. These tabs have kept my pool water crystal clear!! No issues and I saved about $30.
Reviewed in the United States on August 8, 2025 by Hannah Haynum

  • Would have given 5 stars, but the bags are cheap.
Size: 12 Pack
Bags suck and a few broke and leaked in my equipment box. Works well, great space saver, I live in FL and use this religiously as part of routine once every two months with a few chlorine tablets in between. No need for pool guy so great value in the scheme of things.
Reviewed in the United States on June 30, 2025 by B. D. McCarthy

  • Works great!
Size: 6 Pack
Great product with a great brand! Watch the quantity though because it’s easy to put too much in and over do it. Goes a long way.
Reviewed in the United States on June 30, 2025 by Abbey

  • Starts working in 10 mins! Check the timestamls
Size: 6 Pack
Oh my God I was so bad this year - We ran out of chlorine during the winter... Which is usually fine because algae doesn't bloom in the winter I've noticed.... But here we are going into spring or the desert so the days are already up at like 80 to 85° so it started blooming! We've had it covered all winter with like one of those blue bubble covers - so I'm going to tell you the right way to use the shock because I see some people in the reviews complaining it's not working. Step one BRUSH YOUR POOL! It's going to be gross because your pool is basically a nasty little swamp pond and it's going to be stinky and probably slimy but brush it and loosen up all that nasty algae. Step two Do your best to skim it as much as you can especially around the filter inlets - Make sure your pool pump is running during brushing and skimming. Step three SHOCK YOUR POOL! The instructions are super clear and actually tell you to do the above step number one lol I've shocked my pool before and it not work because I didn't brush it and loosen up all the crap and I was trying to get rid of. No I'm not doing anything other than that to prep the pool - I'm not balancing pH or adding any chemicals or whatever it's just nasty pond water getting agitated. In my photos you'll see in just 10 minutes the shock is already starting to change the color of the pool - I know I was shocked too. Then there's the photo of it getting more clear and that's at least 2 hours after the shock. I used a whole bag even though that's way too much for our pool because I needed to use the big guns and get it taken care of. I'll update my review when I've got the more photos to share I'm actually in the process of doing it right now those photos above are from like a couple hours before Im writing this review. ... show more
Reviewed in the United States on February 22, 2025 by Mike Mike

  • Works great
Size: 6 Pack
Works great for pool maintenance. I use 1 bag every 2 weeks for my 21 ft round pool.
Reviewed in the United States on August 23, 2025 by stacy

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