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HTH Swimming Pool Advanced Shock 16-oz Bag - Cal Hypo Granular Shock Treatment for Crystal Clear Water in the Pool Shock department at Lowes.com
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Amazon.com : Leslie's Power Powder Plus Flagship Pool Shock and Super-Chlorinator, 1lb - 12 Pack : Patio, Lawn & Garden
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Solenis 52039 Shock Ultra Treatment, Powder, All in One Weekly Chlorine Boost: Pool Shocks (073187520395-2)
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