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BioGuard Arctic Blue Shock

BioGuard Arctic Blue Shock

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BioGuard Arctic Blue Shock is designed to oxidize and clarify your swimming pool water for the long winter months.

  • 58.2% sodium dichloro-s-triazinetrione
  • pH~5.0
  • First step in an effective winterization program
  • Restores water clarity
  • Oxidizer, buffer, clarifier, flocculent
  • Ideal for all pool surfaces
BioGuard Arctic Blue® Shock is designed to oxidize and clarify your water for the long winter months. This means that it will kill the bacteria, algae and other organics that can otherwise grow and lead to cloudy water, algae blooms and waterlines during the months of non circulation.



Always follow label instructions, dosages are provided here to inform your purchase decisions. These dosages are not meant as a replacement for label instructions.

Winterization: 1 pound per 6,000 gallons of water.

Multiple treatments throughout the winter may be needed if pool is left uncovered or using a mesh covering.