In The Swim Super Algaecide for Above Ground or Inground Swimming Pools – Low Odor, Non-Foaming Preventative for Yellow/Mustard Algae in Swimming Pools - 7.1% Chelated Copper – 1 Quart

Effective Maintenance: Ideal for spring openings and routine care, reducing algae growth with a long-lasting copper-based formulaPowerful Algae Control: Highly concentrated to eliminate yellow and mustard algae with small, easy-to-measure dosesStain Protection: Formulated with 23.5% copper triethanolamine and 7.1% chelated copper to prevent pool stainingSwim-Ready Safety: Free of harmful chemicals, allowing immediate swimming after applicationUser-Friendly Formula: Non-foaming, low-odor, and perfect for those sensitive to strong chemical smells