The Geerpres® Mopping Trolley System is easily adjustable for two or three buckets. The wide wringer accommodates up to an 18″ at mop frame, and the 30-quart stainless steel buckets are extra wide for rinsing at mops. Multiple buckets allow the solution to stay clean longer. The four swivel casters make this trolley extremely maneuverable in tight spaces. The trolley, casters, buckets and wringer are all fully autoclavable.