FAQ Search Select a Category Cleaning Formulas Cleaning Tips Corporate Deep Cleaners FAQ Hard Floor Cleaners Parts and Accessories Steam Sweepers Vacuums Warranty Web Site and/or go How is the 3X Concentrated Formula different than the other formulas for full size deep cleaners? Answer: 3X offers you the same great cleaning and the same great coverage as the 128oz bottle of Fiber Cleansing formula, yet comes in a smaller, easy to use and store container.