U.S. EPA registered pesticide info
'De Witt Formula 343 Algaecide And Corrosion Inhibitor' is an algaecide. Its Federal EPA registration number is: 1269-65. It was originally approved by EPA on 31 Aug 1965. Its registration got cancelled on 30 Apr 1987. It has a 'Caution' signal word. It has the following active ingredients: Sodium 2-benzyl-4-chlorophenate. It's approved for 2 sites including air conditioner water and cooling tower water. It is also approved for 2 pests and pest groups including but not limited to algae and slime-forming bacteria.