Now you can breathe easy with the Milescraft DustRouter™! Install, connect, and cut dust by over 90%. The DustRouter™ can be mounted directly to your router table or insert plate, making it easy to adjust or change your tools. Enjoy maximum dust collection while edge trimming, cutting grooves, slots, dadoes, dovetails, and more.
Dust Cup: Outside Diameter: 3-3/8" (35mm), Inside Diameter: 2-1/2" (64mm)
Cup Connector: Outside Diameter: 1-3/8" (35mm)
Short Dust Tube: Length 20" (508mm), Diameter 1-1/2" (38mm)
Long Dust Tube: Length 35" (889mm), Diameter 1-1/2" (38mm)
Fence Connector: Outside Diameter: 2-1/4" (57mm)
T-Connector Vacuum Connection: Inside Diameter: 2-1/4" (57mm)
Velcro Hook Circle Pad: Outside Diameter: 3-3/8" (35mm), Inside Diameter: 2-1/2" (64mm)
Largest Bit Possible: 2-1/4" (57mm) Diameter
https://www.youtube.com/watch?v=D3ec1csXXQ4