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GLB 25 lb Supersonic Shock (73% Cal Hypo)

GLB???SuperSonic??sanitizes,??clarifies, fights algae and won?۪t??over-stabilize pool water. It is??safe for use on all pool surfaces??and leaves no residue. Contains 73% available chlorine.

ACTIVE INGREDIENTS:
Calcium Hypochlorite??_...................... 73%
OTHER INGREDIENTS??_....................................27%
OTHER INGREDIENTS: ........................................70%
Available Chlorine 70%