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S.T. Dupont fountain pens can be refilled with standard international-sized ink cartridges or with an ink converter and any brand of bottled ink.
Colorado Pen offers international-sized ink cartridges in more than 30 different colors. This specially formulated ink helps keep your S.T. Dupont fountain pen writing smoothly. Private Reserve also provides this size cartridge in fun ink colors.
If you have the ink converter that came with your pen, then you can use bottled ink for refilling. Choose a bottle or two if ink from our large selection. Colorado Pen ink arrives in a huge 90ml bottle or smaller 30ml size. Private Reserve offers different types of ink in their bottles, including a fast-drying option. Waterman bottled ink is offered in all the favorite colors.