10 Best Leslie's Power Powder Plus 73 Calcium Hypochlorite Pool Shock of 2025

Main Highlights

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  Kills bacteria, controls algae, and destroys organic contaminants
• 
  Concentrated chlorinating granular Cal-Hypo pool shock
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  Fast dissolving
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  Low Residue
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  73% Calcium Hypochlorite

Main Highlights

Main Highlights

• 
  Kills bacteria, controls algae, and destroys organic contaminants
• 
  Concentrated chlorinating granular Cal-Hypo pool shock
• 
  Fast dissolving
• 
  Low Residue
• 
  73% Calcium Hypochlorite

Main Highlights

• 
  One bag of this product per 10,000 gallons of water
• 
  Adjust and maintain pH at 7.2-7.6
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  Maintain total alkalinity in the range of 60 to 120
• 
  One bag of this product per 10,000 gallons of water provides 5 to 10 ppm available chlorine
• 
  68% Calcium Hypochlorite

Main Highlights

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  Contains 73% Calcium Hypochlorite and 70% available chlorine, the strongest pool shock available.
• 
  Kills bacteria, controls algae, and destroys organic/inorganic contaminants.
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  Fast-dissolving, low-residue, suitable for treating problems and routine maintenance.
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  Non-stabilized, no Cyanuric Acid (CyA), ensures clear, sanitized pool water.
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  Ideal for super chlorination, dosage: 9-18 oz. per 10,000 gallons for 5-10 ppm chlorine.

Main Highlights

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  Fast-Acting Algae Control: Calcium Hypochlorite (Cal-Hypo) is an effective non-stabilized chlorine shock treatment, ideal for routine maintenance in your swimming pool
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  Versatile Use: Suitable for above ground or in-ground swimming pools, spas, and hot tubs; Pre-dissolve or dilute to avoid bleaching the liner
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  High Chlorine Content: 65% available chlorine, provides powerful sanitization for crystal-clear water
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  Easy Application: Pre-dissolve or dilute to avoid bleaching swimming pool liners; Spread granules in the deepest part of the pool; Brush if needed
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  Dosage: Use 1 Pound per 10,000 gallons weekly to maintain 5-10 ppm chlorine levels

Main Highlights

• 
  Kills bacteria, controls algae, and destroys organic contaminants
• 
  Concentrated chlorinating granular Cal-Hypo pool shock
• 
  Fast dissolving
• 
  70% Calcium Hypochlorite
• 
  Fast acting solution for swimming pool problems

Main Highlights

• 
  One bag of this product per 10,000 gallons of water
• 
  Adjust and maintain pH at 7.2-7.6
• 
  Maintain total alkalinity in the range of 60 to 120
• 
  One bag of this product per 10,000 gallons of water provides 5 to 10 ppm available chlorine
• 
  68% Calcium Hypochlorite

Main Highlights

• 
  Kills bacteria, controls algae, and destroys organic contaminants
• 
  Concentrated chlorinating granular Cal-Hypo pool shock
• 
  Fast dissolving
• 
  70% Calcium Hypochlorite
• 
  Fast acting solution for swimming pool problems

Main Highlights

• 
  Powerful Sanitizer: Kills bacteria, controls algae, and eliminates organic contaminants for clean, clear pool water.
• 
  High-Strength Formula: Contains 73% Calcium Hypochlorite with 70% minimum available chlorine.
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  Fast-Acting & Low-Residue: Quickly dissolves with minimal residueperfect for quick cleanups or ongoing care.
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  Versatile Use: Great for super chlorination or routine maintenance; non-stabilized with no added cyanuric acid.
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  NOTE: This bundle will likely ship in multiple packages, which may come from different locations and arrive on separate days. Please allow an extra day or two for all items to be delivered.