Ultra Dry Original - The Ultimate Carpet Dry Cleaner - Use for outstanding results on all types of soils. Ultra Dry Original is a unique blend of chemically dissimilar water based cleaning agents and dry cleaning solvents. Ultra Dry carries a negative chemical charge which chemically reacts with "Ultra Catalyst" rinse agent to greatly improve cleaning results. Spotting agents are all but eliminated on all but the most difficult stains. Carpets dry rapidly because a minimal amount of water is applied to the carpet. Problems and complications normally associated with carpet cleaning (i.e. overwetting, browning, shrinkage, mildew, odors, rapid resoiling, etc.) are eliminated or reduced when used in connection with "Ultra Catalyst" rinse. Ultra Dry is easy to use, safe, nontoxic, has a pleasant fragrance and is great for upholstery cleaning too!