Schmidt K5 Standard Piston Ink Converter - Push In Deluxe

The Schmidt K5 Push-In Deluxe Ink Converter is a premium German-engineered standard international fountain pen converter designed for users who want a secure fit, durable construction, and smooth piston filling action. The K5 allows fountain pens that normally use disposable cartridges to be filled with bottled ink, offering greater ink choice, improved sustainability, and long-term value. Its refined piston mechanism provides controlled filling and steady ink delivery once installed in the pen.

The K5 converter is designed for fountain pens that accept standard international cartridges, and is widely compatible with many high-quality pen brands that use this system. Compatible brands commonly include Conklin, Monteverde USA, Pelikan, Retro 51, Visconti, Montegrappa (select models), Edison, Esterbrook, Gioia, Leonardo Officina Italiana, Pineider, Taccia, and other international fountain pen manufacturers that follow the standard international cartridge format. It is frequently selected as an upgrade replacement for pens originally supplied with standard international cartridges.

This converter features a full-size standard international profile with a reinforced push-in connection for a secure fit. To confirm compatibility, compare your existing cartridge or converter by overall length and push-in opening size. The Schmidt K5 is not compatible with proprietary cartridge systems such as Lamy, Parker, Pilot, Platinum, Sailor, Sheaffer, or Cross.

Sold as one converter per package, the Schmidt K5 Push-In Deluxe is an excellent choice for fountain pen users seeking a high-quality, long-lasting converter that unlocks the full flexibility of bottled ink while preserving smooth, dependable writing performance.