Accutron Brand Instruments Supplies, Recorder Code 22099 Accutron scavenging hube, Clear Disk, Each X-ray compatible and autoclavable, the Accutron Scavenging Circuit consists of a clear exhalation valve hub, a vacuum control assembly and a continuum of tubing.The transparent hub permits visual monitoring of patient respiration during dental procedures. In addition, the hub's low-profile design offers an expanded field of operation. The circuit's precision vacuum-control assembly allows for vacuum flow at the Ada's recommended rate of 45 liters per minute. Clear Disk 1 each