First Choice Cal Shock 65%, 100 lb Drum Item #140850 Model #1175 delivering accuracy and capacity for

delivering accuracy and capacity for everyday jobsite use

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First Choice Cal Shock 65%, 100 lb Drum Item #140850 Model #1175 delivering accuracy and capacity forContains 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.