For Pilot fountain pen bottled ink users The Pilot Converter for Bottled Ink allows you to load bottled ink into your Pilot fountain pen instead of loading an ink cartridge. Pilot fountain pens have a converter included when you purchase the pen. However, if your converter has been misplaced, order a new one right here. This converter will fit ONLY Pilot fountain pens. If you are unsure of the correct converter for your particular fountain pen, check your brand of pen in our "Ink and Refill" section or call our customer service representatives for assistance.