Diplomat nib unit Aero with stainless steel nib strength F, matt black

Replacement nib unit for Diplomat Aero fountain pen

Writing with the Aero fountain pen from Diplomat is really a lot of fun. If the nib or the ink duct was damaged due to a fall or improper handling, it is not necessary to replace the whole pen. For this case, the replacement nib from Diplomat is recommended, especially for the great Aero.

The Diplomat nib units are also a great and inexpensive alternative if you want to write with a different nib strength from time to time. For writing greeting cards you might want a thicker nib and for the daily notebook a thinner one. You can achieve this by quickly changing the nib unit.