Converter

I am sure these are great but they don't fit Parker fountain pens!

I got this ink converter after growing tired of constantly purchasing new disposable cartridges for my fountain pen. The refillable design allows using bottled ink indefinitely, which has already proved significantly more economical than relying on expensive cartridge replacements. The synthetic material construction feels sufficiently durable for repeated filling cycles without showing signs of cracking or degradation. The converter mechanism works smoothly, drawing ink reliably from bottles without air pockets or incomplete fills that would interrupt writing flow. The universal compatibility works perfectly with my standard fountain pen, fitting securely into the barrel without wobbling or feeling loose. The fit feels intentional and well-engineered rather than a generic approximation that might cause leaking or connection issues. The black colour is discreet and practical, blending invisibly within the pen barrel without aesthetic concerns. I barely notice it's there during regular writing, which is exactly what you want from functional equipment rather than something demanding visual attention. The refillable aspect has genuinely simplified my writing routine. Rather than hunting for specific cartridge types and managing inventory, I simply keep a bottle of ink available and refill as needed. This flexibility has proved genuinely convenient for someone who writes regularly throughout work days. The ink capacity remains consistent across multiple fill cycles without degradation or reduced holding capacity. After weeks of regular refilling and use, the converter performs identically to initial use without any apparent wear or diminished functionality. The environmental benefit of eliminating disposable cartridges appeals to my preference for sustainable alternatives. The reduction in plastic waste from single-use cartridges represents a meaningful contribution to reducing household environmental impact. Overall, this ink converter delivers genuine practical and economic benefits for fountain pen users wanting to move away from disposable cartridges. The reliable functionality combined with durable construction makes it ideal for regular writers seeking economical alternatives. A worthwhile investment that's simplified my writing setup whilst reducing ongoing costs considerably.

This adaptor certainly is not universal. It did not fit the pens I wanted but I was able to use them on others. Difficult to find out until you have them.

Does not fit Pilot Parallel pen, which it seemed to do according to the Amazon site, so it only gets one star from me - otherwise it would get four stars as it is a reasonably priced well built converter that fits other pens I own; for the Pilot Parallel pen you need a Pilot CON-40 converter

My fountain pens all use the smaller size cartridges, so it's pointless using a converter. I bought this for flushing the nibs and it's ideal. It holds a decent amount of water or nib cleaner and is a very good price compared to OEM options.

Irritatingly, it's too long to fit inide most of my fountain pens. It seems well made and I'll keep it for the one pen it does fit, but it's not accurate to say it fits all standard fountain pens.

Geese work better than the branded converter that was in my Franklin Covey pen.

Coming up to Christmas and card writing time, I bought a calligraphy pen set last year. Came to use it this year and the single use cartridges had dried out. I have bottles of inks and tried to refill them ended up with inky fingers and sink! Found these on Amazon ordered three. Perfect fit and now it only takes a minute or two and they are refilled with whatever colour ink I choose, The calligraphy set is Mont Marte not sure if these will replace every cartridge type. I think pens like Parker, Sheaffer and Cross have their own adapters. These seem to fit the standard refills.

Rien a dire de mal, correspond bien a sa description

This works great with my Muji fountain pen

He visto bastantes comentarios de este convertidor "universal" que no se ajusta a ciertas plumas que también usan cartuchos universales. Yo lo e colocado en plumas Faber-Castell Ambition y Emotion y se ajusta perfectamente. Lo he comparado con el convertidor original de Faber-Castell y resulta 100% compatible (al menos con los productos FB). Funciona perfectamente y parece de buena calidad. En su funcionamiento yo diría que el ajuste del émbolo es incuso mejor que el de Faber-Castell y genera mayor fuerza de succión al cargar tinta. Un producto recomendable.

Comperato perché suggerito per la penna Yookers YOOTH 751. Non può essere assolutamente utilizzato perché inadatto

Denna fungerade i en gammal penna men var några millimeter för lång. Det gick utmärkt att klippa av yttre plasten och då passade skruven. Har inga problem med den utan den har gett den gamla pennan ett längre liv.