Caran d'Ache Piston Pump Converter
This Replacement Fountain Pen Piston Pump K2 Converter from Caran d'Ache features an easy to use pop-in construction. Free yourself from the limitations of cartridge refills. This converter will allow you to use any type or color of bottled ink that you desire. Designed for use with the Caran d'Ache 849 fountain pens. Fine Swiss engineering.