Tornado® BD 20/11L Walk Behind 20" Automatic Floor Scrubber TS120-S45-UTornado BD 20 11L Walk Behind 20" Automatic Floor Scrubber Pad driver, batteries & charger included The new Tornado BD 20 11L Compact Scrubber is built for easy operation and maintenance and to reduce cleaning and labor costs in an affordable package. Available in brush assist and traction drive, these 20" models have no trouble fitting through standard size doorways and efficiently clean and dry small, congested areas in just one pass. The 48. 5 lbs