Formulated for tough cat urine stains and odor. Guaranteed to permanently eliminate all stains & odors - even urine odors. Removes all organic stains and odors, including foods, blood, vomit, feces, grease, dirt, grass, smoke and perspiration. Will also work on old and deep-set stains and odors. No perfume cover-up and discourages new pet soiling. Good size of multi-cat households or for households with abundant stain and odor problems. Water And Natural Enzymes. 1 GALLON