O-ACE-sis Liquid Algaecide 1 qt

Algaecide 60 plus is broad spectrum. Effective on yellow, the greenish free-floating varieties of algae and black algae that cling to the walls and bottoms of pools. Unlike the commonly used quaternary ammonium compounds, Algaecide 60 is specially formulated to be non-foaming even when added in high concentration slug doses, thereby enhancing pool appearance.