Opus 88 Cartridge Converter

Custom converters for Sakura Pigma fountain pens, designed for easy ink refills without mess.

Designed for Stipula fountain pens, this converter allows for easy ink refills and customization.

A converter designed for Tachikawa pens, originally intended for calligraphy, ensuring versatility with ink choices.

A universal converter that fits Uni-ball fountain pens, promoting a variety of ink options.

A sleek converter crafted for Waterman fountain pens, promoting effortless switching between cartridges and bottled ink.

A specially designed converter for Boker fountain pens, allowing you to explore a range of bottled inks.

A well-built converter for Conklin fountain pens, facilitating easy filling with your favorite ink.

A versatile and easy-to-use universal converter that fits most standard fountain pens, perfect for ink enthusiasts.

A versatile converter that fits most fountain pens, ensuring a smooth and enjoyable ink-writing experience.

A compact converter designed for Lamy Pico fountain pens, ideal for those on-the-go.

A simple yet effective converter for use with Noodler's fountain pens, ensuring a seamless ink transfer experience.