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Surface Protection

Prevents equipment corrosion, and surface stains and scale.

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Long-Lasting Sunlight Protection

Enriched with a chlorine stabilizer to extend the life of your clean.

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Stops Algae

Kills and prevents green, mustard and black pool algae

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Maintain a Clean Pool

Your pool chemistry can change quickly. Test your pool water weekly to ensure your Free Chlorine level remains between 1 – 4 ppm. If needed, apply the appropriate chlorine or sanitizer to restore adequate sanitizer levels.

Maintain a regular cleaning regimen. Skim water surface, brush walls, vacuum and empty skimmer baskets at least once per week. Download the Clorox® Pool app on the Apple App Store or Google Play for expert water analysis and product and dosage recommendations.

This season, spend less time maintaining and more time enjoying your swimming pool!

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Product reviews

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Long lasting

These tablets do a great job of keeping the pool maintained during the week in between cleanings and treatment we do on the weekends.
Ease of Use: 5 Effectiveness: 5
05/13/2020
Michelle
Texas state

Clean and chemistry balanced

Been using the tablets for my inground pool from time the product was introduced on to the market and I have found that they last longer than most of the other products I have used and the chemical balance of the pool is always stable. I have also use some of the other products like the PH increasers and the test kit and they also work very well. I have taken my poolwater to my local pool dealer to be tested and then used the Clorox test kit to test my pool water and the results were almost the same.
Ease of Use: Effectiveness:
04/26/2020
Dana
Texas state

Be Very Careful

Be careful when using this product. These tablets contain Cyanuric Acid, a chlorine stabilizer which is great to a certain point. Once you go over that point, it will over-stabilize your chlorine and render it ineffective. So you will add more and more to kill the algae but it won’t work. Once your pool is over-stabilized, the only way to fix it is drain a bunch of water out and refill the pool, which can be expensive. IF you test with strips, you can get a false Cyanuric Acid reading and think you need more chlorine. The only way to test it correctly is to take your water sample to a pool store and let them test it. Clorox probably adds the Cyanuric Acid to get the tabs to last longer. You just have to be very careful that you don’t get too much. I normally use the Clorox products and have had good luck.
Ease of Use: 4 Effectiveness: 3
07/17/2019
Joe S
Texas state

Phila pool owner

I have had to care for a swimming pool my entire life. Nothing…Nothing on the market come close to this product. Don’t new and improved it, don’t add ANYTHING! It ain’t broke so don’t fix it. Clorox knows clean. From cloths bleach to my swimming pool. Thank you for this product.
Ease of Use: 5 Effectiveness: 5
07/09/2019
Denise
Texas state

Great supplement in hot weather!

I have a 15′ oval above ground pool with the SimpleSalt system. Last summer, I found that the system simply couldn’t keep up with the high temperatures and bright sunlight here in Coastal SC. After about a month of struggling with clarifiers and other products (which is why I chose the salt system to begin with – I wanted to do away with all those products!), someone suggested adding one of these tablets to my skimmer once every two weeks. Since then, I have had absolutely no problems with the cloudy water I experienced last year. A great product, and much cheaper than the other additives I was having to buy!
Ease of Use: 5 Effectiveness: 5
07/07/2019
Tykesmom2007
Texas state

XtraBlue is a Great Product!

Just giving credit where its deserved: your Florida Blue now XtraBlue tabs are EXCELLENT! I’ve used them in my pool for 2+ years now and it needs very little else…maybe an occasional shock in the rainy season. I used to need acid, stabilizer, clarifier, etc, but XtraBlue does it all (my pool water is always balanced and clear, and your tabs last a long time). Thank you for this product from a Very Happy Customer!
Ease of Use: 5 Effectiveness: 5
07/03/2019
Garvin
Texas state

Pool

In Summer of 2018 I use to clean my pool twice a week for green algae. This year I found this xtra blue tablets in Lowe’s and decided to give it a try. Since I got them I don’t have to clean my pool any more works amazing.
Ease of Use: 5 Effectiveness: 5
06/16/2019
Salvador
Texas state

Simple the best

Simple the best, in the tropic this product works well ina comparison with other brands.
Ease of Use: 5 Effectiveness: 5
05/30/2019
Carlos Q
Texas state

Does not kill algea

I have been using this product for about 3-months with the hope of controlling yellow green algae. No luck! I suspect that this product is just chlorine and nothing extra for algae.
Ease of Use: 5 Effectiveness: 1
04/15/2019
Jerry
Texas state

Great tablets, don’t fall apart

Love these tablets. 1 of the 3″ tablets will last an entire week in my 11k gal fiberglass pool and they don’t fall apart and become a mushy mess in my auto chlorinator. I tried the HTH tabs and they fell apart and became a mushy mess. Plus these have the activator in them to help maintain chlorine balance – the HTH did not. Each tablet came in its own sealed package that was easy to open without needing scissors.
Ease of Use: 5 Effectiveness: 5
09/25/2018
SnoopyGal
Texas state

Excellent product!

This year (2018) was the first year we used this product from beginning to end of summer. We had a BRUTAL summer in the Mid-Atlantic region with excessive (and overwhelming) heat as well as periods of intense rain. Our pool was clear ALL SUMMER LONG! I attribute our water’s appearance to this product. No need to change or check other brands when we have no issues with what we use. Awesome!
Ease of Use: 5 Effectiveness: 5
09/07/2018
PeteyK
Texas state

Seriously think twice

DO NOT buy/use this product. The “OTHER INGREDIENTS………5.95%” will increase the Cyanuric Acid (CYA) without any control measures in place. There are only two ways to reduce CYA from your pool: 1) drain __% of your pool and refill with fresh water; 2) if someone in your city offers it, there are reverse osmosis trucks that can pull water from your pool, remove the CYA from that water and put it back in your pool. Neither of these options are cheap or fast. If you are unfamiliar with what high levels of CYA will do to your pool water, either google it or continue reading. Either way, RUN from this product because you will eventually regret the results that these “OTHER INGREDIENTS” have on your backyard oasis. CYA acts as a buffer for chlorine from the sun which, in balanced amounts is good. However, once it reaches numbers in the 90+, the chlorine is no longer effective at keeping your water clean so you can have chlorine over 5ppm and the water is still cloudy and green. Before I figured out the problem with my water chemistry, I had bumped the chlorine to 11.5ppm and it was still green because the CYA was around 100. One final note, it isn’t like CYA is some rare unobtainable chemical. It is easily acquired at your local pool store where you can add it in very controlled amounts so it is a real shame that Clorox is hiding it within most of their chlorine products without telling their consumers.
Ease of Use: 3 Effectiveness: 1
07/23/2018
Learning the hard way
Texas state

Tablets

Not crazy about it! I think Hth products are better.Since I started with these tablets I have had nothing but problems. Not string enough.
Ease of Use: 5 Effectiveness: 3
07/03/2018
Ann F
Texas state

Not so great

We have an above ground pool and have always bought the hth 6 in 1 tablets. But this year I saw the Clorox 6 in 1 and thought, great brand name, this will work even better. No, that is not the case. Even keeping my water balanced, I am fighting allege and decreasing chlorine numbers. It is supposed to have an algaecide and a stabilizer in the tablets. When using the hth 6 and 1 3″ tablets I never had an algae problem and the stabilizer in it works the way it should keeping my chlorine levels up. I was very disappointed in this product and will go back to the hth tablets next year.
Ease of Use: 4 Effectiveness: 2
08/19/2017
Bri75
Texas state

chlorinating tabs

I only use the chlorine tabs of this brand with my liquid chlorine and muriatic acid from another brand. these tablets are the best out there. long lasting and my water is soft and clear. Other tabs dissolve too quickly .
Ease of Use: 5 Effectiveness: 5
08/18/2017
skgauba92
Texas state

This product was amazing it took care of my problem in one treatment I had been using different Pool Products trying to get the full balance one product wouldn’t work I tried another then I did one treatment one shot treat and just threw in one of your pre-filled chlorine floaters and my pool has been clean clear and silky smooth ever since
Ease of Use: 5 Effectiveness: 5
08/14/2017
KayeElliott
Texas state

This product was amazing it took care of my problem in one treatment I had been using different Pool Products trying to get the full balance one product wouldn’t work I tried another then I did one treatment one shot treat and just threw in one of your pre-filled chlorine floaters and my pool has been clean clear and silky smooth ever since
Ease of Use: 5 Effectiveness: 5
08/14/2017
KayeElliott
Texas state

No good

We purchased these about two months ago and have had trouble since, it has turned green and we have had the water tested twice. Everything points to the tablets.
Ease of Use: 5 Effectiveness: 1
07/30/2017
Upset
Texas state

Best Product Ever

Been using the Extra Blue since getting my pool remodeled 2 yrs ago. Got lazy & bought Leslie product & totally clouded my gorgeous water…Clorox to the rescue! Thanx:)
Ease of Use: 5 Effectiveness: 5
07/24/2017
Cathe
Texas state

Awesome

I just started using this product this year. I have never had a cleaner or clearer pool! Love these tablets!
Ease of Use: 5 Effectiveness: 5
07/11/2017
MrsRoh
Texas state

I would not use again

I changed to CLOROX Pool & Spa because it made the pool water sparkle blue- BUT no one could swim in it without having a horribly PAINFUL chlorine rash! I even cut amount in half of what directions called for.
Ease of Use: 1 Effectiveness: 1
06/28/2017
Grandmother
Texas state

Cheaper than Bioguard!

These seem to be the same thing as the Bioguard silk tabs I have purchased in the past except these are about half the cost!
Ease of Use: 4 Effectiveness: 4
06/16/2017
Teddy R
Texas state

Great tablet

I used the regular tablets before but was not as good as this one. These last longer and have every benefit to them with the 6 in 1. Great stuff!
Ease of Use: Effectiveness:
04/18/2017
Bodie
Texas state

Fantastic product

Fantastic product. Xtra blue is my preferred choice.Water quality seems crisper and clearer vs. the basic chlorinating tablets.
Ease of Use: 5 Effectiveness: 5
03/12/2017
Millsie
Texas state

Excellent!

Love these – they are a convenient, easy way to maintain stable levels
Ease of Use: Effectiveness:
11/23/2016
LoneStar
Texas state

easy to use

I have been using the 1 inch tablets and tried these, they are very easy to use had a few problems getting them open, but really like the easy usage. don’t seem to use as much as the other tablets
Ease of Use: 5 Effectiveness: 5
11/14/2016
burgess88
Texas state

Excellent product

Not only do tablets provide chlorine to our pool – it is packaged very conveniently. At first I was not too keen on individually packaged tablets – especially when using several at a time, but they are easy to open right at the equipment and forego the need for protective gloves.
Ease of Use: 5 Effectiveness: 5
10/14/2016
Jimpro27
Texas state

Fantastic product

Works better than other tablets on the market, definitely will continue to purchase
Ease of Use: 5 Effectiveness: 5
10/13/2016
Jose
Texas state

Chlorinating Tablets

Does a outstanding job, works and does what it supposed to do
Ease of Use: 5 Effectiveness: 5
10/12/2016
HunterandCalliGrandpa
Texas state

A+ pool cleaner

These chlorine tablets far exceeded expectations. They left the water feeling like I was in a newly filled pool. The water was extremely clean and algae free until the tablets ran out- which was in at least three weeks.
Ease of Use: 5 Effectiveness: 5
10/11/2016
Jacob
Texas state

Chlorine Tablets From A Brand You Know & Trust

I’ve been using these tablets in my 32,500 gallon pool for several years. They’re readily available in most shopping outlets including Costco and I find them to be priced very competitively against the many No-Name Brands of chlorine tablets that most pool supply stores sell. I have confidence in the Clorox brand and know that I can trust them to offer an effective product.
Ease of Use: 5 Effectiveness: 5
10/11/2016
AL from Pensacola
Texas state

Great tablets

I bought cheaper tabs but these tabs lasted longer in pool and I used less often to keep chlorine levels. Never had any algae issues with these.
Ease of Use: 5 Effectiveness: 5
10/11/2016
Tenn410
Texas state

Good chlorine

Good product that delivers as advertised. When used as directed I have no issues with maintaining my chlorine level.
Ease of Use: 5 Effectiveness: 5
10/08/2016
Nitehawk
Texas state

Best product!

This is one of the best chlorine pool products I have used. I have used all others that didn’t work as well to fight off algae in the heat and humidity in Mississippi. With the other products I had to constantly use shock, algaecide, chlorine, and other chemicals. With this my pool has been crystal clear from the day I started using it. Kudos Clorox.
Ease of Use: 5 Effectiveness: 5
10/06/2016
kellbell32
Texas state

Great product!

When we use this product, we end up having to treat our pool less often than usual.
Ease of Use: 5 Effectiveness: 5
10/06/2016
mrsbeez217
Texas state

Terrific Product

I started using Clorox Products this year & the XtraBlue Chlorine Tabs helped me get consist results with all my chemicals while using less chemicals & saving money. We have a large pool & the past 3 years the water never seemed to get in balance & I was always spending hundreds of dollars at the pool store. With XtraBlue Chlorone Tabs I’ve been able to get & keep my chemicals balanced while saving money. Instead of a few hundred dollars a month I’ve only purchased a 40# bucket of XtraBlue Chlorine 3″ Tablets using 3 each week in my Chlorinator along with using XtraBlue Shock on a monthly basis. Great Products, Crystal Clear Clean Water week after week along with reasonable pricing Thanks Clorox!
Ease of Use: 5 Effectiveness: 5
10/06/2016
BoSoxSully59
Texas state

Great product

Filled my chlorinator and monitored my water. Chlorine levels remained within range. No additional attention necessary. I like the fact that they are individually wrapped. Cuts back on the chlorine fumes when the container is opened
Ease of Use: 4 Effectiveness: 4
10/06/2016
Rf1274
Texas state

Only one I use

These tablets work great. They make my pool so sparkling clean at a very affordable price.
Ease of Use: 5 Effectiveness: 5
10/06/2016
Alysonkelley
Texas state

No more algae!

I’ve not had any problems with mustard algae since I started using these tablets! Definitely saves me time and money since my pool stays clean and I haven’t had to use any algaeside!
Ease of Use: 5 Effectiveness: 5
10/06/2016
Missy1
Texas state

Ease of use is outstanding!!!

Beyond satisfied with how easy these are to use. No mess is my favorite part about these
Ease of Use: 5 Effectiveness: 5
10/06/2016
Trace
Texas state

Great Product!

Easy way to chlorinate pool, available in bulk quantity
Ease of Use: 5 Effectiveness: 5
10/03/2016
ajohnson9217
Texas state

Keeps my pool clear

I trust the clorox brand and I am so happy that they are making pool products. We have a large in ground pool and I don’t have any problems with the water quality of my pool using the Clorox chlorine tablets. I love that you can get them in a big resealable bucket that is easy to store, but more importantly I love that they keep my pool clean. I don’t have any problems with cloudy water or algae growth. I highly recommend this product to anyone with a pool or spa.
Ease of Use: 5 Effectiveness: 5
10/03/2016
sgardner
Texas state

Great product

Great product, I tell my friends about it all the time.
Ease of Use: 5 Effectiveness: 5
10/02/2016
Michelle
Texas state

Hands down great product.

Does what it is suppose to do. It is easy to use no mess
Ease of Use: 5 Effectiveness: 5
10/01/2016
Chiasson1111
Texas state

Great for the pool!

I have tried many tablets all different brands and the best I have found are these. They are packaged well and I can tell a big difference in my pool water with this brand. I take my pool chemicals seriously because it’s such a pain to fix if the water gets off balance, but I never have a problem when I use their products!
Ease of Use: 5 Effectiveness: 5
09/30/2016
tiffanyrogers
Texas state

Best Ever

In 35 Years of pool ownership , best I’ve ever used.
Ease of Use: 5 Effectiveness: 5
09/30/2016
Red1
Texas state

Great Product!

What a great product! These individually wrapped 3” tablets can be used in your feeder, your skimmer, or your floater. They are protected against sunlight which makes them slow dissolving so they last longer to save me money. They do more than just chlorinate your pool. They kill bacteria; control algae; remove contaminates such as body oil, sweat, lotions, and urine; prevent corrosion and scale; and make the water feel silky and smooth. No harsh chemical feel at all. As you can probably tell, I really love this product and strongly recommend it.
Ease of Use: 5 Effectiveness: 5
09/29/2016
tmas
Texas state

Great product

Has keep the chlorine levels correct and the pool even when on vacation
Ease of Use: 5 Effectiveness: 5
09/29/2016
Jeffhe
Texas state

Another solid product from Clorox!

What can I say? Just drop in a tab of Clorox 3″ tabs to your skimmer and you are set for fun and safety in your pool! You will shock less often, backwash fewer times, and have less eye and skin irritation when you use their liquid shock.
Ease of Use: 5 Effectiveness: 5
09/28/2016
fooddude
Texas state

Great Product

Exceeded my expectations — dissolve rate is very good.
Ease of Use: 5 Effectiveness: 5
09/28/2016
Mom1
Texas state

Excellent

Works wonderful controlling algae, I haven’t had to use any algaeside in my pool since I started using the Extra Blue chlorine tablets.
Ease of Use: Effectiveness:
09/28/2016
Missy
Texas state

They do the job, but

The tablets need to be compacTed better. The tablets seem to dissolve quicker than others I have used in the past
Ease of Use: 5 Effectiveness: 4
09/28/2016
Pool user
Texas state

Long Lasting Tablets

This product is easy to use and lasts a long time. Keeps the pool chlorinated and stabilized.
Ease of Use: 5 Effectiveness: 5
09/28/2016
Mom2my3sam
Texas state

Great product!

Convenient, met expectations. Easy to use container.
Ease of Use: 5 Effectiveness: 5
09/28/2016
dillsteph
Texas state

Perfect!

These chlorine tables made my water sparkle like a diamond. They also don’t dissolve as fast as my previous ones.
Ease of Use: 5 Effectiveness: 5
09/28/2016
hotpockets17
Texas state

Excellent product

Excellent product, helps keep my pool clear. Tablets seem to last longer than others I used previously
Ease of Use: 5 Effectiveness: 5
09/28/2016
Jason1
Texas state

Good Chlorine

I like this chlorine. It works well and does hold the algae at bay. I tend to have an algae problem at some point in time each year, and this chlorine helped to decrease the problem this year
Ease of Use: 5 Effectiveness: 4
09/28/2016
Malcolm
Texas state

Great product!

Love the sturdiness of the box! It’s great. The chlorine tabs work great! Only star is missing because the tabs are individually wrapped. Good and bad thing I guess!
Ease of Use: 2 Effectiveness: 5
09/28/2016
Aponder
Texas state

blue

This is the best pool product I have bought since it first came on the market. I have used all others, but with this one, I haven’t had an algae problem in the heat here in FL. With the other products I had to constantly use shock, blue liquid, chlorine and other chemicals. With this one, It is all I need, and my pool has been crystal clear from day one.
Ease of Use: Effectiveness:
08/27/2016
Andrea
Texas state