Fits on all of the Taylor Tools 17" machines and will instantly convert your machine to dust free operation when attached to a proper vacuum system, (removal of the grey bumper is required to install the dust control ring). The floating dust control ring is designed to maintain the dust seal between the floor and the base of the machine by floating (no attachment to the machine). This insures that, as the brushes wear, they will always make proper contact with the floor. Extreme Machines and Floor Prep Plus machines come equipped with a vacuum nozzle for dust control. The Commercial Buffer (part #483.17) will require the addition of a vacuum port (part #485.17.DC.1-1/2).