Clorox Pool&Spa Algaecide Xtra Blue, 40-Ounce 43040CLX
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<b>[Product Information]</b><br>
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<li>All-In-One algae killer</li>
<li>Quick and effectively kills green, mustard and black pool algae</li>
<li>Treats up to 25,000 gallons</li>
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