Kaweco fountain pen converters are ideal as a cartridge replacement or to remind you of the "older filling system" and the use of an inkwell. When the ink is drawn up, the converter is like a refillable cartridge. For refilling, it is left in the fountain pen and the nib is dipped in the ink bottle while the ink is being drawn up. Explanatory videos are available at Kaweco's Online Tutorials.
Three different sizes are available:
The MINI plunger converter is our recommendation for the Sport series.
The Kaweco STANDARD converter is suitable for all larger fountain pens, such as the Special & Student lines.
The Kaweco squeeze converters is the only style that will fit the Liliput series. It has a limited capacity, so while it will fit larger models, it is not recommended for other pens.
These converters all conform to the International pen sizing system.