A dust cap for LC duplex SFPs. A simplex version (for BiDi SFPs) was exported too, this is just the same model without an extrude on the Rx connector.

F3D file included for adjusting tolerances as needed.

My measurements were optimized on Finisar SFPs, while printing with eSUN PETG on a Prusa i3 MK3s.

Brim may be needed if you have poor bed adhesion.

Edit: Added a tight fit version with a handle for easier removal.

Prusa

I3 MK3S

No

No