Threaded Filament dust filter for 1.75mm filament

Yet another threaded filament dust sensor for 1.75mm filament, this one can be attached directly to your extruder or in the middle of a bowden tube, since it has threads in both sides.

I noticed most of the filament filter out there have a flat top, which caused problem when introducing the filament, so I made this version with chamfer top to guide the filament in the right direction.

By the way, I'm selling the extruders from the picture on E-bay with this filament dust filter as a gift,