The DS4 Series vacuums by Ruwac allows you to experience the ultimate in powerful cleaning and collection. These vacuums are part of the Powerhouse Series, and feature all the qualities in strength and versatility that exemplify this line, such as continuous duty clean-up that can be used as either a portable or central vacuum system with multiple users. With high CFMs, maximum horsepower, and three phase motors, the DS4 Series vacuums works great on removing heavier materials such as large chips, grains, concrete dust, sand and fertilizer.