Shock | GLB | Supersonic Cal Hypo Shock | 73 Percent Calcium Hypochlorite | 1 Lb Bag

GLB Supersonic 73% Cal Hypo Granular Chlorine Shock delivers a fast-acting sanitizer that quickly raises chlorine levels and targets cloudy water. Use after heavy swimming, rain, or when your pool needs a reset to restore clear, sparkling water.

Each 1 lb bag (24 bags per case) provides a high-concentration dose of calcium hypochlorite, designed to dissolve rapidly and distribute evenly across your pool for an effective shock treatment.

• Rapid chlorine boost after heavy use or storm rinses
• Clears cloudy pool water and restores sparkle quickly
• 73% available calcium hypochlorite for strong sanitizing power
• Granular formula that broadcasts easily and dissolves promptly
• Convenient 1 lb bags with 24 bags per case for steady stocking

Ideal for seasonal maintenance and emergency resets, this shock treatment helps you reclaim water clarity faster and keep your pool safe for swimmers. Add to cart today and bring back clear, inviting pool water.