Removes acid type stains, neutralizes urine, prevents bleaching. This product effectively removes most stains caused by pet urine, tea, coffee, wine, fruit juices, and other acid type stains. Professional Stain Eliminator contains a special chemical ingredient that neutralizes the alkali and ammonia that is present in urine and stopping it from bleaching the dye in the carpet. Use in tandem with carpet cleaning machines. 16 fl. oz. (1 pint).