Rubbermaid WaveBrake Mopping System Bucket

Convenient graduated measurement marks on both 
clean and dirty water buckets allow user to see contents
Dirty water bucket separates and hides dirty water from clean water,
preserving the quality and cleaning power of cleaning solutions
Designed to exceed 50,000 wringing cycles, 
while average wringers only perform approximately 860 cycles
Quiet casters are engineered to reduce noise and roll smoother, 
so workers would not disturb guests and visitors