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23306bio Backup Algicide 32oz


This is BioGuard's most effective algae preventative. Works well in chlorinated and brominated pools.  A powerful surfactant/wetting agent makes Back Up able to work in tiny cracks and crevices where algae start.

  • Highly effective algae preventative and algae killer
  • Keeps pool water clear and free of visible algae
  • Activity increases as water temperature rises (and you need protection the most)
  • Will not affect pH levels
  • Non-staining