1 QT STAINTRINE P/N: 406704A Staintrine This product removes existing metal stains and sequesters metals in the water to prevent new stains from forming. Metal stains and scale are quickly removed or lightened from pool walls while equipment is protected with chelating agents. Swimming can resume within minutes after treatment. Useful Tips Removes and prevents stains caused from metals Swimming can resume just minutes after treatment Compatible with chlorine, bromine, biguanide and salt water sanitizing systems