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Compact & corrosion resistant
Highest-rated chlorine resistance
No topcoat required
dry and dust-free so your blue painter's tape sticks properly
First Choice Cal Shock 65%, 100 lb Drum Item #1054983 Model #CMAJ1SET13 Compact & corrosion resistantContains 65% available chlorine Convenient, easy to use & fast dissolving Economical Effective Sanitizer The available chlorine (65%) is released when the product is dissolved in water and it works continually to prevent growth of algae & bacteria. Shock treatment Used for shocking or superchlorinating pool water to destroy organic contaminants and clear up hazy water. Disinfection of potable water granules are NSF 60 certified for potable water use.
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