Clorox® Pool&Spa™ Swimming Pool Chlorine Stabilizer, Helps Chlorine Last Longer, Saltwater Pool Compatible, 4LB (Pack of 1)
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Availability:
In Stock.
Arrives
Monday, Aug 3
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Size: 4lb
Features
- Prolongs Chlorine Effectiveness: The Chlorine Stabilizer protects your pool's chlorine from the damaging effects of the sun's harsh UV rays, thereby making chlorine last much longer, allowing you to enjoy consistently clean and sanitized pool water.
- Reduces Sun's Impact on Chlorine: This product minimizes the effect of sunlight on chlorine loss, protecting your chlorine from burning off. By using a chlorine stabilizer, you ensure longer-lasting sanitization, reducing the need for frequent product application to your pool.
- Ideal for Salt Pools: Our Chlorine Stabilizer is particularly well-suited for saltwater pools. It offers reliable protection against the corrosive effects of sunlight on chlorine generated by salt cells.
- Preserves Pool & Equipment - Unbalanced water can cause a corrosive environment that damages your pool surfaces or equipment. This product reduces pool maintenance, extending the life of your pool's cleanliness.
- Clorox Pool App: Test like an expert anytime, anywhere with the Clorox Pool App. Solve common swimming pool problems and get personalized product and dosage recommendations
Description
Clorox Pool&Spa Swimming Pool Chlorine Stabilizer, Helps Chlorine Last Longer, Saltwater Pool Compatible, 4LB (Pack of 1);12004CLX.
Brand: CLOROX Pool&Spa
Item Weight: 4 pounds
Item Form: Granular
Product Benefits: Maintains Clean Sanitized Water
UPC:
Brand Name: CLOROX Pool&Spa
UPC: 810821023283
Global Trade Identification Number: 83
Package Size Name: 4LB
Number of Items: 1
Unit Count: 4 Count
Item Type Name: Chlorine Stabilizer, 4 lb.
Manufacturer: Clorox® Pool&Spa™
Model Number: 12004CLX
Manufacturer Part Number: 12004CLX
Item Form: Granular
Product Benefits: Maintains Clean Sanitized Water
Item Weight: 4 pounds
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Monday, Aug 3
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Maintaining a pool can sometimes feel overwhelming, but this chlorine stabilizer from Clorox has made the job much easier for me. The product does exactly what it claims. It helps chlorine last longer which means I am not constantly adding tablets or shocking the water as often. Once mixed in, it keeps the water balanced for weeks and I have noticed a real difference in how steady my chlorine levels stay. One thing I appreciate is how straightforward it is to use. The instructions are clear and the granules dissolve well when added slowly to warm water before pouring into the skimmer. It does take a little patience because stabilizer is not instant, but once it is in the water and circulated properly, it delivers consistent results. Compared to other brands I have tried, this stabilizer seems more effective at maintaining chlorine levels even during hot summer weeks when the sun usually burns chlorine away quickly. I also feel like I am saving money on chlorine products because they are lasting much longer. Pros: reliable performance, clear directions, noticeable improvement in chlorine efficiency, and trusted Clorox quality. Cons: it can take a full day or two for the stabilizer to fully dissolve so you need to plan ahead but that is expected with any stabilizer. Overall this is a must have for pool owners who want less hassle and clearer water. It has become part of my regular pool maintenance routine and I highly recommend it.
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Reviewed in the United States on September 2, 2025 by Stacey
Used this to bring up the stabilizer level in my pool. It dissolved as expected and helped keep the chlorine from burning off as quickly in the summer sun. Worked exactly as it should.
Reviewed in the United States on June 6, 2026 by Austin
These work well keeping our pool clean the water is clear as can be. They are easy to use great size and value compared to the same product at the store. Our water testing has been great for all our ph levels when we go have it tested. Would highly recommend
Reviewed in the United States on March 6, 2026 by Wendi
I copied and pasted this review since I couldn't comment on it. I read this review annd had to dump water like he stated. He saved my butt! I could not figure out why my pH would not rise when adding way way to much pH up than in years past. Did the water dump, added fresh water....my pH and chlorine levels are back to normal! Thank you George H. Customer Review George H. 5.0 out of 5 stars Effective, but caution about use Reviewed in the United States on September 15, 2021 Verified Purchase The product is effective at helping free chorine from burning off as fast, but be careful with this product, as it can only effectively be lowered by replacing water (draining/refilling) in the pool. Know the total capacity of your pool, including water in the plumbing, and calculate and measure out the amount you need for no more than 30 ppm. Higher amounts will require you to use more chlorine to sanitize your pool, and concentrations approaching 100 ppm are generally considered unsanitary, as it would block chlorine from doing its job or you'd have to use so much chlorine that you'd have no effective way to measure and maintain pH. If it gets that high, you'll have to drain some water and refill the pool to dilute it. If you use trichlor tablets or dichlor powder to chlorinate your pool, you do not need to add this product at all despite what anyone or any app tells you. Those products already have stabilizers built-in and will slowly add them to your pool along with their chlorine as they dissolve. 24 people found this helpful Helpful Report Permalink
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Reviewed in the United States on May 15, 2024 by John B
I use this every year for swimming Works great
Reviewed in the United States on July 13, 2026 by Kim
I have a 36,000 gallon pool and need about 8-10lbs of stabilizer a year. I used to buy it from my local pool store because I like to give them the business so they stay in business. Finally though, decided to buy it online because it’s about half the cost. The only complaint I have is that it takes so long to dissolve (seems to be all brands). What I do is put about 3 lbs in a knee high stocking, tie the end and hang it in front of a return jet. After about 3 hours, it softens up and you can squeeze the stocking (keeping it in front of the jet) and it readily dissolves.
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Reviewed in the United States on September 7, 2025 by Mike T
This is a great way to raise the CY level in your pool. I tend to run about a 50 CY and keep my free chlorine level at about 7.5-10% of that level. This keeps the sun from burning off chlorine as fast and you can either save money by adding less chlorine or turning your salt water chlorinator down. Works as expected by just dumping it in your filter basket and it's cheaper than the pool store.
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Reviewed in the United States on April 22, 2026 by Alex
This was a perfect item for me, I will be taking care of the pool from now on so it’s great that I get to try different products and that’ll tell you this one was great and I’ll definitely be ordering it again when I ordered that I was very happy with the size of it it was no leakage, and when I used it, the watercolor and chlorine content were great and it removed any algae that was present.
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Reviewed in the United States on July 8, 2026 by Amazon Customer