FilamentBox Grommet Knob modified

I wanted to use the Filament Box Grommet by Flip_Schaumal but I did not like the open air connection where the filament goes through. So I decided to design a new knob. This knob has a ptfe tube connection build in and can be placed on the existing Filament Box Grommet. The ptfe connection is not fixed to the knob so it can be easily turned. The ptfe tube extents all the way into the box and creates an air-tide seal when the filament goes through. The filament also now no-longer slides against t