Jack's Magic After Shock Chlorine Reducer - 1 lb PARTS - FILTERS Waterproof and buoyant

Waterproof and buoyant

if a 12" extension is needed to either end or both ends for additional height the following should be added to the end of the part number: “-U” for upper extension

Highest available concentration in the industry

Adheres underwater

Removes and eliminates metals from pool

Jack's Magic After Shock Chlorine Reducer - 1 lb PARTS - FILTERS Waterproof and buoyantAfter Shock is a chlorine reducer that is primarily used with Stain Solution #1, The Iron, Cobalt and Spot Etching Stuff to reduce the chlorine to below 1ppm. After Shock can also be used to quickly lower chlorine levels after shocking great for commercial pools!