iRobot Scooba 230 Floor Washing Robot At just 6-1/2-inch in diameter, scooba can clean where dirt and grime hide Scrubbing brushes loosen stains, dirt and grime while the squeegee-vacuum picks up virtually all the dirty water, leaving only clean behind Works with regular tap water or scooba hard floor cleaner, natural enzyme formula Quickly and easily washes floors in your kitchens, baths and other high-traffic areas Cleans up to 150 square feet in a single session