HTH 67084 Pool Care Algae Guard Advanced, All Algae Eliminator for Swimming Pools - Fast-Acting, Destroys & Prevents Green, Black & Mustard Algae, Keeps Pool Water Crystal Clear, 32 fl ozBrand: HTH Features: BENEFIT: Be all clear for more summertime fun; Use this powerful, non foaming formula to kill and prevent heavy amounts of algae blooms for crystal clear pool water POWERFUL ALGAE CONTROL: HTH Algae Guard Advanced effectively destroys and prevents heavy green, black and mustard algae blooms NON FOAMING, FAST ACTING: Add HTH Algae Guard Advanced directly to your swimming pool water and swim right away COMPATIBLE WITH ALL POOLS: