The DEWALT DWV9180 Drywall Sander Dust Extractor Attachment Accessory allows for a dust free set up for the 7800 Drywall Sander, commonly used for paint preparation and/or drywall sanding. This attachment allows you to connect the 7800 Drywall Sander to the DWV9000 Quick Connector and DWV012 10 Gallon Dust Extractor. This connector is designed with durable plastic resin construction for long service life.