High acid emulsion formulation removes calcium, lime, scale, iron/rust stains, and uric acid buildup from toilet bowls and urinals. Inhibited hydrochloric acid effectively removes the toughest stains and buildups quickly and completely. Cleans and deodorizes in one step. Contains 24% hydrochloric acid detergents and inhibitors. Excellent for use in hard water and for heavy iron or scale buildups.