A straight pipe adapter from a Kärcher WD3 to a Bosch AdvancedOrbit 18
2mm thick walls with .1 mm clearance on the inside for most optimum fit
Kärcher pipe diameter - 35.30 mm
Bosch pipe diameter - 29.00 mm
Print and enjoy, maybe a layer or two of insulating tape for best airtight fit depending on your printers tolerances.
The author marked this model as their own original creation.