The Dupont Ink Piston Converter is suitable for S.T. Dupont Olympio, Orpheo and also Fidelio fountain pens. Go from cartridges to bottle ink with one simple ink piston converter
Dupont Ink Piston Converter
The ink converter for S.T. Dupont fountain pens has a standard format; but it will not work with old S.T. Dupont models including, but not limited to: Classique, Gatsby, Montparnasse and Lady collections.This piston refill for fountain pens transforms your cartridge pen into a pump action fountain pen that refills using bottled ink. Simply dip the pen into the ink bottle and turn the thumb wheel to make the piston draw ink into the cartridge.