When your need is for a bigger but still portable commercial wet or dry cleaner the 570 series sets entirely its own standard first you have the full structofoam construction in fact a numatic first unmatched worldwide structofoam is a material formulation embodying all the strength needed for bigger machines yet without weight penalty it is really rugged it doesnrsquot dent scratch or deteriorate and yet it is light in weight and resists all standard cleaning chemicals the power