Cal Hypochlorite Granular Shock | GLB | Supersonic | 73 Percent Available Chlorine | 5 Lb

GLB Supersonic 73% Cal Hypo Chlorine Granular Shock quickly raises chlorine levels and clears cloudy pool water. This 5 lb bottle of calcium hypochlorite granules (Cal Hypo) delivers 73% available chlorine for fast, effective pool shock treatment.

Use after heavy swimming, rain, or when your pool needs a reset to restore proper sanitization and water clarity.

For best results, run the filter during dosing and recheck sanitizer levels after 24 hours. Maintain proper pH (7.2–7.6) for optimal chlorine effectiveness.

• Rapid, fast-dissolving calcium hypochlorite granules deliver 73% available chlorine for quick sanitization after heavy bather load.
• Designed as a robust pool shock treatment to clear cloudy water and oxidize organic contaminants.
• Effective for both in-ground and above-ground pools; compatible with standard chlorine systems.
• Packaged as a 5 lb bottle, with 6 bottles per case for seasonal stocking.
• Simple dosing: follow label instructions for shocking cycles and recheck sanitizer levels after treatment.

Add GLB Supersonic 73% Cal Hypo Chlorine Granular Shock to your pool care routine today and enjoy sparkling water tomorrow.