Castle Hot Tubs Granular Shock - 1Kg
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Castle Hot Tubs Granular Shock - A traditional shock treatment product, these calcium hypochlorite granules have an available chlorine level of approximately 65% making them a good chlorine donor for pool water problem solving. Granular Shock Chlorine is very effective at restoring sparkling water from algae infestation and should be added through the skimmer. These non stabilised chlorine shock granules are perfect for shock dosing or regular oxidisation of swimming pool and spa water.
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