Pilot CON-40 Fountain Pen Converters

The Pilot CON-40 does exactly what it's supposed to do... I used this to replace the squeeze converter that came with my Pilot Metropolitan, and I'm quite happy with that decision. The converter contains three steel balls to keep the ink mixing, and I've experienced only flawless functioning of this converter.

Lower capacity, but reliable and these work much better in the Pilot Metro pens (compared to the bladder fill converters that come with the pens). Only takes a second to refill so not a big deal for me - even for long writing sessions - they still last for many pages of writing and even when used for work purposes in the office, I may have to refill maybe twice a week

I cannot get this new model more than 2/3 full, which is frustrating. The prior design (with the black twister) seemed much better!

The Pilot CON-40 converter works just fine for me. I bought one of theseconverters with the four tiny balls that help ink from staying at the top of the converter for my Pilot Metro Retro Pop (fabulous fountain pens, by the way!) because I couldn't tell how much ink was left in the press style converter that came with the Metro. The press converter is a fine utilitarian converter and I'm certainly keeping it as a contingency, but I'm glad that I got the CON-40 replacement. It doesn't fill to the top, but few pens do and anyway an air pocket is a good thing for flow. The tiny balls are nifty for getting the ink from sticking at the top of the converter. They work. The clicking sound is so soft in my converter that I don't notice a click when I use the pen. Flushing ink residue from the converter has not been a problem for me. And I simply shake out any water that remains after I've expelled cleaning water from the CON-40. I will order more of these for a couple other Metros that I have - love the colors of the Retro Pops.

The CON-50 is much better. This CON-40 seems to hold less ink, causes burps often, and the twist knob is more difficult to use.

Not a great fan about the CON-40. Doesn't draw sufficiently enough ink in the converter. So I end up priming the pen then removing the converter to fill it by sharing.

This converter is a pain to clean, and doesn’t hold a ton of ink. Otherwise, it works incredibly well, keeping the ink from sticking to the back of the converter.

Works great in the Pilot Metropolitan pens. The agitator balls work well for shimmering inks.

No complaints. Wish it had a little more ink capacity.

I went through a lot of issues trying to get the shipment outside the US and Ron was there all the while sorting out the problems and I'm grateful for his support (in spite of my many emails and calls to him with loads of probably impertinent questions and difficulties I was having).

Certainly recommend the product.

Definitely recommend PenChalet.com for all related purchases

It works, but not as well as the con-50 converter. With the con-50, all I would need to do is twist the piston down and up twice to achieve a complete fill. With the con-40, it doesn't matter how many times I work the piston, it won't get a complete fill. To anyone else in the same situation, I recommend just doing one fill. Then flip the converter(and anything it's attached to) so that the opening (or nib of the pen) is facing more upward(around 55 degrees above horizontal). Get the ink to fall to the now lower part of the converter, and then twist the mechanism to expel the excess air(recommend doing this over the bottle of ink to prevent spills). Finally, do a second fill like normal. This has worked for me, so I hope this helps.