In The Swim Super Pool Shock Swimming Pool Sanitizer - Fast Dissolving, Non-Stabilized - 70% Available Chlorine - 24 x 1 Pound Bags 25334

Whether you are an above ground or in-ground pool owner, In The Swim’s super shock sanitizer treatment is a powerful, fast-acting booster that is great for opening your swimming pool in the Spring season. When confronted with stubborn algae, bacteria, and other harmful water contaminants that can cause illnesses, our In The Swim super shock treatment can rapidly restore your swimming pool back to an ultra-clear quality. The main active ingredient is 73% Calcium Hypochlorite (Cal-Hypo), with a