DeWalt Universal Vacuum Adapter (Explained in 4 minutes) - YouTube
Amazon.com: JJXNDO V8 Battery Adapter for Dewalt 20V Lithium Battery Converted to Replace for Dyson V8 Battery, Works with Dyson V8 Series Animal Absolute Vacuum Cleaner(Adapter ONLY) : Home & Kitchen
Dewalt Sander Dust/Vacuum Adapter (Airlock) for Festool,Ridgid,ShopVac – MegaLoop Designs