The largest walk behind scrubber we offer is the Advance SC901. Unsurpassed simplicity of design results in unmatched reliability and low operating costs. The SC901 removes common complexity by eliminating sophisticated electronics and excessive features to increase uptime while lowering your overall cost to clean. 114 Litre Solution tank is one of the largest in the class meaning less trips to fill up and more time cleaning the floor. This 28″ wide scrub path model can clean up to 28,000 sq ft per hour!