7 Commercial and industrial vacuum cleaners; Wet-dry vacuums and storage tanks associated with such equipment; Heavy-duty industrial vacuums; Hydro excavators; Water and vacuum-powered trench digger machines; Machines for cleaning surfaces using high pressure water; Drain jetters; Sewer jetters and cleaners
12 Industrial, commercial, and environmental mobile vacuum trucks; Vehicles with industrial cleaning equipment on board, including vacuums and hydro excavators