This is left-oriented version of the Filament Guide by GerryPB to use with two-spool holders, like the one which comes with the Prusa i3 MK3S+.

It is not a mirror version of the original, but an updated model, using the original Fusion 360 model as a base.

The images show the left-oriented (this model, in black) and the right-oriented (the original, in orange) filament guides.

Print Settings

Printer: Prusa i3 MK3S+
Rafts: No
Supports: No
Resolution: 0.2
Infill: 25%
Infill type: Cubic (not required, I used Cubic infill to be similar to the original)
Filament: PETG

Printed in: Prusament Jet Black PETG

Notes:
Printed in PETG, but PLA works as well - I printed the original in PLA and used it until I printed the two guides shown in the images.

The Fusion 360 model is included if anyone wants to make changes.

Update 2023-06-27: Added .gcode file