Acid Bowl Cleaner Disinfectant, A mild phosphoric acid bowl cleaner disinfectant and deodorizer. Removes hard water deposits and lime soap build-ups. Cleans everything in the bathroom including the chrome fixtures. Economical usage of 3 to 4 oz. per gallon of water in the presence o 5% blood serum and 400 ppm hard water. Nice floral scent, blue color. Vicous to cling to the sides. E.P.A. Registered. PH full strength – 1; 1:32 – 1 to 1.5.