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* Price as shown is available in-store only.

Suncoast Chemicals Extended Algae Control Algaecide as an effective algae treatment to kill algae and prevent algae growth. Extended Algae Control Algaecide kills and prevents blue-green, black and mustard/yellow algae. Perfect for pools in hot, humid climates. Active ingredient: 11.8% Copper Sulphate Pentahydrate.
  • Single treatment lasts 3 months
  • Simple to use
  • Non-foaming 
  • Non-staining
(Note: Balance pool water before using Extended Algae Control)