32 oz per bottle. Ecolab® CBC® Plus Bowl Cleaner is a mild acid bowl and disinfecting cleaner that combines detergent and wetting agents coupled with a 20% phosphoric acid base. Eliminates rust, lime, organic deposits, and offensive odours from wash basins, bathtubs, shower stalls, drinking fountains, glazed tile, porcelain enamel, toilet bowls, and urinals. Formula contains corrosion inhibitors.