The Sheaffer Converter is a screw-action piston converter allows Sheaffer fountain pens to use bottled ink. It fits all Sheaffer fountain pens except those from the VFM collection. Allowing you...

Kaweco mini sport piston converter is designed for Kaweco Sport fountain pens. A miniature piston converter allowing the use of bottled inks with many compact fountain pens that can normally...

The Staedtler Premium Converter is a high-quality ink converter designed for use with Staedtler’s premium fountain pens. It allows you to use bottled ink instead of disposable cartridges, giving you...

This replacement twist-style piston cartridge converter by TWSBI is specifically designed for the TWSBI SWIPE. While the opening is standard international size, the overall diameter of the converter is too...

Standard International top hole fitting, Holds more ink than the typical converter, Fits the SWIPE fountain pen, springs actuated converter. This replacement spring-loaded push-style cartridge converter by TWSBI is specifically...