Clorox Pool&Spa XtraBlue 40-oz Pool Algae Prevention

Name: Clorox Pool&Spa XtraBlue 40-oz Pool Algae Prevention
Brand: Clorox Pool&Spa
SKU: 1001061238
Price: 29.98 USD
Rating: 4.7 (278 reviews)

4.7

278

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This Item Is Featured In

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Clorox Pool&Spa Clorox Pool & Spa Clean & Maintain Your Pool with a Chlorine Pool Starter Kit

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Clorox® Pool&Spa™ XtraBlue® +™ Algaecide is the ultimate algaecide solution to kill and prevent all types of pool algae - including swampy green algae, slippery mustard algae, and tough, stubborn black algae. This non-foaming, non-staining treatment clears algae in 24 hours and works great in all pool types. Use as a preventative algaecide weekly if your pool is prone to algae or when the temperature increases during the peak of summer. Always apply chemicals according to label directions. Circulating pool water when applying chemicals helps disperse chemicals throughout the pool for maximum coverage.

Clorox Pool&Spa XtraBlue+ Swimming Pool Algaecide kills algae in just 24 hours.
Fast-acting treatment effectively eliminates pool algae, ensuring your pool remains clean and clear
Our XtraBlue+ Swimming Pool Algaecide features a preventative, non-foaming formula that fights algae growth before it starts
This product treats up to 25,000 gallons and is suitable for all pool types, including salt pools.
Its patented, non-staining formula ensures compatibility and effectiveness, allowing you to spend less time maintaining and more time enjoying your swimming pool.
Test like an expert anytime, anywhere with the Clorox Pool App, solve common swimming pool problems and get personalized product and dosage recommendations.

General
Series Name	XtraBlue	Chemical Type	Algaecide

Dimensions
Package Size (oz.)	40

Features
Chemical Purpose	Algae Prevention	Effect on Mustard Algae	Prevents and kills
Effect on Black Algae	Prevents and kills	Gallons Treated for Kill	25000
Effect on Green Algae	Prevents and kills	Gallons Treated for Prevention	266670

Compatibility
Compatible with Chlorine Pools	Yes	Compatible with Salt Pools	Yes
Compatible with Hot Tubs	No

Certifications
CA Residents: Prop 65 Warning(s)	No

Warranty
Warranty	None

Miscellaneous
UNSPSC	49241700

Check out the Best Selling Pool Algae Control on Lowes.com

Review

4.7 out of 5

278 Reviews

95% Recommend this product

Ratings may include incentivized customer reviews.

What Customers Are Saying

This product is highly effective at controlling and eliminating various types of pool algae, including green, mustard, and black algae. It works quickly, often clearing up pools within 24-48 hours of application. Key benefits include preventing new algae growth, providing long-lasting protection, and helping maintain clear, blue, and pristine pool water. While a few customers reported mixed or negative results, the majority of reviews indicate this is a reliable and high-performing algaecide that delivers on its promises.

Customer review summary generated by AI, including incentivized reviews.

278 Customer Reviews

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Use frequently to keep algae away.

Would Recommend

works as advertised. using to maintain is key.

happy spouseJanuary 20, 2026
Verified Purchaser

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Less than expected

Didn’t work very well.

ConnieNovember 6, 2025
Verified Purchaser

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Response from CloroxPoolandSpa

Hi Connie. We are the manufacturer of Clorox Pool&Spa products. We appreciate your feedback and are sorry to hear that your recent experience wit...

CloroxPoolandSpaNovember 6, 2025

CloroxPoolandSpa

Kills algae

Would Recommend

Works immediately, you’ll notice working within 30 minutes.

John SOctober 27, 2025
Verified Purchaser

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Expensive way to remove algae.

Would Not Recommend

Works but very expensive compare to Yellow Clear powder.

mikecOctober 27, 2025
Verified Purchaser

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great product

Would Recommend

works real well

mikeOctober 23, 2025
Verified Purchaser

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Waste of money if you are looking to kill algae in

Would Not Recommend

Was not effective

DJMHOctober 22, 2025
Verified Purchaser

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Response from CloroxPoolandSpa

Hi DJMH. We are the manufacturer of Clorox Pool&Spa products. We appreciate your feedback and are sorry to hear that your recent experience with ...

CloroxPoolandSpaOctober 23, 2025

CloroxPoolandSpa

Happy

Would Recommend

It had a broader rage of treating three different types algae and the price was significantly less than other products that only treat one type of algae. Also, I liked that Lowe’s gave me a military discount! (:>D

LeoJSeptember 18, 2025
Verified Purchaser

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