Algiguard 1L

Regular price $34.00
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BioGuard AlgiGuard is a highly effective quat-based algaecide that lowers surface tension to help repel ducks and insects. It also works well with chlorinating products to prevent a wide variety of algae.

  • 400g/L benzalkonium chloride
  • Powerful wetting agent
  • Stable in sunlight and will not evaporate


  • Prevents wide spectrum of algae growth
  • Also effective as a duck deterrent and floating/swimming insect killer
  • Negligible effect on water balance