Cartridges, Converters and Compatibility between brands

Choosing the right ink refill system is critical for a smooth writing experience. Many premium fountain pens—such as those from Platinum—are designed to work only with their proprietary cartridges and converters, ensuring perfect ink flow and performance. In contrast, our handcrafted pens at Provincial Mills are constructed to accept universal (or Standard International) cartridges and converters, giving you the flexibility to choose from a wide selection of quality inks available online or in specialty stores. We recommend reviewing product specifications so that you can select the refilling method that best suits your pen’s design and your personal style.