The Durachlor Alkalinity Increaser is designed to raise the total alkalinity levels of swimming pool water. This chemical is meant to be maintained between 80-120 ppm, so that the water does not turn corrosive or create a scale build-up. Raises total alkalinity Reduces and prevents corrosion Help prevent pH fluctuations UPC 025551450135 Brand Name Durachlor Unit Count 800.0 Fluid Ounces Manufacturer Haviland Product Benefits Scale Build-up,Alkalinity Increaser,Prevents Corrosion