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How to Choose the Right Fountain Pen Ink Cartridge or Converter

There are many different styles of fountain pen ink cartridges and converters. Some brands share the same style while others require that you use their specific brand. These cartridges and converters fall into one of two categories:
  • Standard International: Standard international ink cartridges have the same size receptacle can be used with many different fountain pen brands including Delta, Conklin, Monteverde, Montegrappa, and more.
  • Proprietary: Proprietary fountain pen ink cartridges, however, fit only the pen or brand of pen which it was designed for.
We have compiled a list of converters and cartridges to help you select the correct one for your pen. We have grouped them by standard international and proprietary and then listed by brand. Browse our Cartridge/Converter Compatability Guides below:

Standard International Cartridges & Converters

For the most part, the brands below will accept standard universal cartridges regardless of the cartridge brand. If your pen is one of these brands, any of the standard universal cartridges should fit your pen. Please double check your specific pen to ensure it will accept standard universal cartridges.

Note: Although some cartridges are specified as a standard universal cartridge, there are different lengths. A Monteverde Magnum Cartridge or the Pelikan Edelstein Cartridge have a longer cartridge body. This allows the cartridge to hold more ink but will not fit within the body of all cartridge pens.

Standard International Cartridge/Converter Compatability Guide

We do not carry 3952 brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Conklin brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Ensso brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Franklin-Christoph brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Karas Kustoms brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Kaweco brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Montegrappa brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Nemosine brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Pineider brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Retro 51 brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Stipula brand ink cartridges. Select any other brand standard international cartridges.
We do not carry Waterford brand ink cartridges. Select any other brand standard international cartridges.


Proprietary Cartridges & Converters

The brands listed below are proprietary brands with options for cartridge and converters that will fit. Remember, most proprietary brands will on accept their own brand of ink cartridge or converter. Converters will allow you to use other ink brands from their respective bottles.

Proprietary Cartridge/Converter Compatability Guide

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