The Advance 2800 ST and 3400 ST scrubbers deliver high performance results. Manual control of the scrub deck and squeegee keep operation simple. Scrub large spaces at a lower total cost. Available in 28 or 34 inch disc scrub decks, calibrated low-solution-flow setting provides 85 minutes of run time on a single tank, and for high traffic areas: operators can increase the solution flow rate at the touch of a button and apply more down pressure, for more aggressive cleaning. The patented Safe Dry squeegee system removes the collected water under the squeegee and allows for 100% water pick-up.