Boost your pool’s cleanliness with GLB Supersonic 73% Cal Hypo Granular Chlorine Shock. This convenient 1 lb bag from a case of 24 provides a quick-dissolving solution to kill bacteria and control algae. With 73% available chlorine, this shock is compatible with chlorine and only requires a dosage rate of 9 to 18 ounces per 10,000 gallons every 7 days. Keep your pool sparkling clean with GLB Supersonic.
76%
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