In The Swim Algaecide for Swimming Pools – Green and Yellow Algae Preventative – Non-Clouding, Non-Foaming Formula – 10% Quaternary Compound - 1 Quart - 2 Pack

Effective Algae Control: Prevents and controls green and yellow mustard algae in inground and above-ground pools.Ideal for Well Water: Helps prevent staining caused by minerals in well water pools.Fast-Acting Formula:...