Schmidt K5 Push In Deluxe Fountain Pen Ink Converter (Pack of 2)

Have had issues with other brands. These work and perform flawlessly. Operation is smooth in both directions. I have ordered several for use in multiple pens and for spares. (Also have the #6 (screw in, for pens that use them)) no problems). A visible silver coil inside the ink chamber of others is a warning flag. That coil inhibits complete emptying of the ink (for cleaning) and reduces the amount of ink that can be drawn in. The only thing I can see that it DOES do, ( based on the examination of a converter that was received defective ) it prevents the shaft from dropping out of knob when the plunger reaches the nozzle which would make it impossible fill the tank (bad design/engineering).

The original converter for my Wordsworth pen finally gave up the ghost. I'm currently using a cartridge and when it's empty I'll try the Schmidt K5 converter of this review. It appears to be well made. Eye balling the lineup, I think it will fit okay. We shall see.

I got this as a replacement for my Ferris Wheel Press Bijou pen. This is an easy to use converter and was ready to go right after opening. It fit nicely in my Bijou pen and has been working well ever since I got it about 10 days ago. My only complaint is that the ink converter doesn't always flow consistently compared to the one I had before probably because there's no spring or ball inside the cartridge to help flow along. But I'm still giving it 5 stars because the flow only stops after not using the pen for a bit and quickly starts again.

I purchased these converter to replace one in a Wordsworth & Black pen. I saw other reviewers mention that the fit was tight to very tight. Mine was tight to the point of not being able to press any harder. I was ready to give up and lose the cost of the converters as well as the use of the W&B pen. In desperation I decided to try installing it on a Jinhao pen, which always felt like it had a "robust" build quality and maybe a looser fit. It took a hard press but it connected. Then, I took the converter that had been on the Jinhao, (and hopefully broken-in a bit) and it too went on after a very firm push. Once everything was assembled, the converters worked perfectly. I will grade them 4-stars because they work well and don't leak. I'll hold one star back due to the extra effort needed though I can't really blame them for the fit issue. Hope this helps someone in the future.

Fits all my fountain pens and keeps a lost art alive. Good for and quality

product was as described, and arrived in a timely fashion.

I wanted a Schmidt K5 converter to be able to enjoy a wide variety of bottled inks on my vintage Diabolo de Cartier fountain pen. The converter fits perfectly and works accordingly. I even have an extra converter in case I need it and the price for the two-pack was very attractive too. I am very happy with my purchase.

Schmidt cartridge converters are produced for many pen manufacturers, and are provided with your new pen as Original Equipment Manufactured (OEM) parts/accessories. If your fountain pens takes Standard International Short Cartridges, and has room in the body for two cartridges, this cartridge converter will fit, and work flawlessly, in your fountain pen. Some manufacturers (Lamy, Pilot, Platinum, Sailor) have their own proprietary ink cartridges and converters. If your pen does NOT take Standard International Short Cartridges, AND/OR doesn't have room for two cartridges in the body of the pen, this cartridge converter will NOT work in your pen.

Bought it for my Pelikan Twist pen. Functioning is perfect. It's a little loose in the socket, but that's because Pelikan's "standard" refill size is a little wider than what other brands use. Still, perfectly usable.

Works as expected

Fast delivery.. Fit in my muji perfectly.. Thx seller

Bought these for my Stadtler fountain pen and they fit perfectly. Thanks.

I bought this this to fit into the Amazonbasics fountain pen and it fits (and works) like a charm. I am not sure how well it fits into other pens though as I haven't tried. There's also little 'behind-the-piston' fluid accumulation from when you are washing it between changing inks (a problem I have faced with the Parker syringe types).