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Reliable & Effective 90-days no algae guarantee (when used according to instructions in balanced pool water) Kills and prevents blue-green, green, yellow and black algae Non-foaming, non-staining (when used according to instructions in balanced pool water) 11.8% Copper Sulfate Pentahydrate; 3% Copper as elemental Effective against blue-green, black and mustard algae Nonstaining formula
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🇺🇸 Ship from USA · On Agora since 2025
$27.49