Mr. Clean is a popular brand of household cleaning products, and its main competitors are Lestoil (7 letters) and AJAX (4 letters). Lestoil is a concentrated cleaner that can be used for a variety of tasks, such as laundry, dishes, and floors. AJAX is a brand of household cleaning products that includes all-purpose cleaners, dishwashing liquids, and bathroom cleaners. Both Lestoil and AJAX offer similar products to Mr. Clean, making them direct competitors in the household cleaning market.