Shockwave 68% Cal-Hypo Granular Shock, Case of 24 1 lb Bags

Shockwave 68% granular shock, packed as a case of twenty four one pound bags. Each bag is 68 percent calcium hypochlorite with 65 percent available chlorine, the standard strength for cal-hypo shock.

Simple dosing

One bag treats 10,000 gallons, so a 20,000 gallon pool takes two bags and there is nothing to measure. The granules dissolve fast and deliver a quick chlorine boost that clears algae, bacteria and other contaminants.

Why buy the case

Twenty four bags covers a weekly shock for most of a season. Individual bags keep the rest of the case sealed and dry until each one is needed.