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Clears Cloudy Water

Kills bacteria and removes contaminants that cause cloudy pool water.

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Swim-Ready in 15 Minutes

Fast dissolving formula works quickly so you can treat and swim in just 15 minutes.

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Maintain a Clear Pool

Crystal clear water starts with pool shock. Shocking your pool water helps to remove contaminants that may cause cloudy water and algae. Apply a pool shock treatment weekly as part of a regular maintenance routine.

Maintain a regular cleaning regimen. Skim water surface, brush walls, vacuum and empty skimmer baskets at least once per week. 

Test and balance your pool water weekly. Your test results will tell you if your water parameters are unbalanced. If needed, apply the appropriate products to restore balance. Download the Clorox® Pool app on Apple App Store or Google Play for expert water analysis and product and dosage recommendations.

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Product reviews

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misleading product

product is not a shock it does not kill bacteria when i bought your product i thought i was getting shock like hth shock which kills bacteria now i must go return it
Ease of Use: Effectiveness: 1
06/14/2018
rj more
new york

Shock Plus

We began using this product four years ago after not being happy with the results liquid chlorine was giving us. This product works much better and we have been using it ever since. It’s as simple as adding one bottle into our pool per week and it stays beautiful.
Ease of Use: 5 Effectiveness: 5
07/09/2017
Noel
California

Schock

Works great like the little bottle instead of the bags.
Ease of Use: 5 Effectiveness: 5
06/25/2017
Renee
Jersey shore

Nanahardin

This product is easy to use, all I need to is add on a regular basis and it stays a beautiful clear blue.
Ease of Use: 5 Effectiveness: 4
06/13/2017
Nanahardin
Kansas city, Kansas

Shock plus

This is by far the best shock I have ever used. Had a very green pool on start up and using half what I would normally used produced superior results, clear in 2 days. This was the first Clorox pool product I have used and I am now definitely going to try their other products.
Ease of Use: 5 Effectiveness: 5
05/27/2017
Kevin
Richland WA

Shock Plus

I had a bit of cloudiness in my pool after 2 days of heavy rain and after adding a pound of Clorox Shock Plus the water was crystal clear within hours.
Ease of Use: 5 Effectiveness:
05/25/2017
Mike
Franklin Virginia

Good product.

Good product that is easy to use with simple and specific directions. It gets the job done.
Ease of Use: 5 Effectiveness: 4
03/12/2017
Millsie

great product

have been using for the past 2 years and am really happy with outcome. easy to use does it’s job and easy to handle
Ease of Use: 5 Effectiveness: 5
11/14/2016
burgess88

Super product

The Shock plus is easy to use and very effective, like the fact that there is no clumping.
Ease of Use: 5 Effectiveness: 5
10/14/2016
Jimpro27

Fantastic product

Works better than expected, love to use this product
Ease of Use: 5 Effectiveness: 5
10/13/2016
Jose

Shock

Works, the APP tells you how much to use. No waste
Ease of Use: 5 Effectiveness: 5
10/12/2016
HunterandCalliGrandpa

Easy to use, works great!

Turned my green pool in to a beautiful, clear pool with just a single application. Just dump into the deep end of your pool and it’ll do the rest!
Ease of Use: 5 Effectiveness: 5
10/08/2016
Jacob

Product that works well

I like this shock. Easy to use container, you don’t need a scissor to open. Keeps my water crystal clear.
Ease of Use: 5 Effectiveness: 5
10/08/2016
Nitehawk

Great results

Struggled with the pool chemical balance and this product cleared up the water in one night. I don’t know the difference between step 2 and step 3 chlorine but this stuff is fantastic.
Ease of Use: 5 Effectiveness: 5
10/06/2016
Ditzel

Love the bottle!

This is not a magic potion for a perfect pool, but in conjunction with other chemicals, I am happy with the results. I prefer the bottle packaging for ease of use. Another aspect I like about this product is the actual shock is more granulated than powder. Powder shock may dissolve into the water quicker but you can only apply it to the edges of the pool and even then, some of it blows away in the breeze. This granulated shock allows me to broadcast it into the middle pool area for better coverage. I was also tired of cutting open those bags of shock. That is why I love this product, no scissors needed, just twist the cap and pour. I can recycle the container too. It does a great job of keeping the pool clean and clear.
Ease of Use: 5 Effectiveness: 5
10/06/2016
kellbell32

Great product!

I love the shock treatment products. My favorite is the Xtra Blue. My only complaint is: lately I have had to add 2 bottles, instead of one, before the test strips tell me there’s enough shock in the pool.
Ease of Use: 5 Effectiveness: 3
10/06/2016
mrsbeez217

Best Products

We only use Clorox Pool Chemicals for their ease of use, effectiveness & cost efficiency. The XtraBlue Shock we use along with Clorox’ XtraBlue Chlorine Tabs. The XtraBlue Shock keeps everything else in line as we use it bi-monthly along with the XtraBlue Chlorone Tabs we use weekly. In my option the small addition cost for the XtraBlue (over the Clorox Shock) is more than worth it since we have not had any algae or other chemical inbalanances all summer. Using Clorox Products this summer, the SmartStrips, XtraBlue Chlorine Tabs & XtraBlue Shock has keep our pool in balance, looking great, saved us money & was easy to maintain. Using Clorox Pool Chemicals this summer has made us customers for life.
Ease of Use: 5 Effectiveness: 5
10/06/2016
BoSoxSully59

Great Value

This is the only shock I use and my pool stays beautiful all season long. Cost much less than the pool store and works just as good.
Ease of Use: 5 Effectiveness: 5
10/06/2016
Alysonkelley

Works great!

Easy to use and has great results! Best shock I have used in my pool
Ease of Use: 5 Effectiveness: 5
10/06/2016
Trace

Fantastic product

Easy to use, convenient packaging and simple dosing instructions
Ease of Use: 5 Effectiveness: 5
10/03/2016
ajohnson9217

So much easier to use

No more battling with shock bags and having to take scissors out by the pool to open them. This shock not only works great but it is in an easy open, easy pour bottle. I love that all I have to do is grab the bottles and go out to the pool and pour it in. It pours really well too so that shock doesn’t go where it isn’t supposed to. Once it is poured in the pool it gets to work, and works very well. I haven’t had any problems with algae or cloudy water since I started using this shock. I will definitely continue to purchase this awesome product. I trust this brand with my pool needs.
Ease of Use: 5 Effectiveness: 5
10/03/2016
sgardner

Looking for a More Convenient Shock Product?

Most pool shock is packaged in a durable, tear-resistant, vinyl-like material. This means you need to carry a pocket knife or scissors with you to dispense the product into your pool. Wouldn’t it be so much more convenient if you had a pool product which was packaged in a plastic bottle with a twist off top? Clorox Pool & Spa Shock Plus is available in an easy to open, easy to pour, recyclable bottle with a resealable lid. Each bottle contains 16 oz of Clorox’s high quality shock product which will help you maintain a clear pool without affecting pH levels. I have been using Clorox Shock Plus for two seasons here in Florida with total satisfaction. I am switching to this more convenient packaging.
Ease of Use: 5 Effectiveness: 5
10/03/2016
AL from Pensacola

Works great

Easy to use and it works great. Great product. All the products work great.
Ease of Use: 5 Effectiveness: 5
10/01/2016
Chiasson1111

Excellent Product!!

I am always throwing scissors away from cutting shock bags open and not wanting my family to get a hold of them with chemicals on them….until now…I am SO HAPPY with these bottles! You simply twist off the top and pour! No more cutting bags, no more replacing scissors! Very convenient!!
Ease of Use: 5 Effectiveness: 5
09/30/2016
tiffanyrogers

Great Stuff !

Works Great , and only 15 min downtime till safe and comfortable to swim . Especially important when grandchildren are coming .
Ease of Use: 5 Effectiveness: 5
09/30/2016
Red1

A Great Clorox Product!

Another great product from Clorox! The shock comes in easy to open plastic bottles-rather than those messy plastic bags I always struggled with to open and keep from spilling everywhere. There is no pre-mixing. Because the bottle is easy to grasp and the opening is just the right size, it is simple to distribute the product into the water. It is quick dissolving, so I don’t have to worry about it harming my liner. This shock does not impact the ph of your pool. It clears cloudy water while removing contaminants such as body oil, sweat, lotions, and urine. It also reduces chlorine odor. One of the best things it does is actually help to improve the performance of my filter. This is a Clorox product I highly recommend.
Ease of Use: 5 Effectiveness: 5
09/29/2016
tmas

Great product

Great product. It has keep the chemicals and my pool looming great.
Ease of Use: 5 Effectiveness: 5
09/29/2016
Jeffhe

Excellent Product

I have been using this product for the past 3 Months and with the use of clorine tabs have Kept my pool water clear without the use of any Other chemicals.
Ease of Use: 5 Effectiveness: 5
09/29/2016
Pepe

Excellent product!

Where has a liquid shock been hiding? Thanks Clorox! So easy to use and very effective from a long trusted brand name!
Ease of Use: 5 Effectiveness: 5
09/28/2016
fooddude

Fantastic Product

Exceeded expectations. Dissolves guickly so liner does not bleach. Only had algae issue one time this year and was because I was out of town during a hot rainy week.
Ease of Use: 5 Effectiveness: 5
09/28/2016
Mom1

Wonderful Product

This product is very effective and easy to use. It keeps my pool crystal clear.
Ease of Use: 5 Effectiveness: 5
09/28/2016
Mom2my3sam

Great product!!

Worked great. Easy to use bottle that Mae application easier.
Ease of Use: 5 Effectiveness: 5
09/28/2016
dillsteph

Love this!

I love this shock. It makes my pool sparkle and keeps the algae away. One bottle a week is just what I need for a perfect looking pool.
Ease of Use: 5 Effectiveness: 5
09/28/2016
hotpockets17

Fantastic product

Works as good as advertised, simple instructions. I love that they are in the easy to open bottles vs having to find something to cut the bags open like other brands
Ease of Use: 5 Effectiveness: 5
09/28/2016
Jason1

Good product

Works good. Just wish it came in larger quantities. 1# bottles are just not enough. I would like to see 25# and 50# buckets
Ease of Use: 5 Effectiveness: 3
09/28/2016
Rf1274

Great Shock

This shock is really great and does a phenomenal job with keeping the water clear. I have been very impressed with this. I have used the generic brand shock and it fell way short when comparing it to the Clorox. I prefer the shock with algae control that Clorox makes; a truly awesome thing to have when your pool is in the middle of the country, as mine is. I like the bottle format and no pouches.
Ease of Use: 5 Effectiveness: 5
09/28/2016
Malcolm

Love this!

Great product! The bottles are so easy to use and open which I love. Our pool was completely green and was back blue in two days! While I don’t think it’s as clear as when I used some other products, it still worked and I would buy it again!
Ease of Use: 5 Effectiveness: 4
09/28/2016
Aponder