Regal Re-fresh+ Shock (1 LB)
73% Calcium Hypochlorite
Available Chlorine: 70%
Fast-acting, fast-dissolving 73% calcium hypochlorite granules. Shock treatment and super chlorinator for pools. This granular calcium hypochlorite kills bacteria, controls algae, and destroys organic contaminants. For use with all pool surfaces.
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Kills bacteria, controls algae, and destroys organic contaminants
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No need to predissolve