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YES, this converter will...
February 11, 2010
Verified Purchase
YES, this converter will work with most pilot fountain pens including pilot parallel and decimo. The only thing that I don't like, since the front body part of parallel is semi-transparent, the ink will stuck in there after you dip the nib into ink. It's kind of annoyed me. The BEST solution and probably cheaper solution is Private Reserve Cartridge filling units (24CAR). You can refill any ink cartridge with any bottled ink. For parallel, you still have that small ball inside the cartridge to stir the ink and it hold much more ink than this converter too.
For other pilot fountain pens, this converter works wonder.
8 people found this helpful
I would like to re-review...
December 25, 2010
Verified Purchase
I would like to re-review this item and up the stars ^_^;;...after a few tries, it's working great now. I find it easier using a dropper to fill the converter and then inserting back into my pilot pen.
4 people found this helpful
I have one of these and...
December 5, 2007
I have one of these and they DO NOT work with he Pilot Cavalier fountain pens. You can install them on the Cavalier but then you cannot close the cap because the pen is thinner than this converter. The converter itself works well just be careful what you are installing it on.
4 people found this helpful
This fits both my pilot...
March 29, 2013
Verified Purchase
This fits both my pilot penmanship and pilot plumix perfectly. With this, I can just refill my pens without buying cartridges.
3 people found this helpful
At first, I thought the...
August 14, 2011
Verified Purchase
At first, I thought the Con-50 would not hold much ink because of its unique design - the plunger does not go past the first half inch of the barrel. This means you have to suck up and purge ink through the pen a few times to completely fill the converter. Overall, not a bad investment if you want to move into the wonderful world of bottled FP ink!
2 people found this helpful
I'm using the CON-50...
November 5, 2010
Verified Purchase
I'm using the CON-50 with my Pilot Duo and a Pilot 77 Muyrex, works like a dream, fits well, no leaks. I love it. Personally I prefer it over the Con 20 with the Sac refill. Not sure what the issue with Cavalliers is, but I think my Duo has the same physical dimensions and works great.
2 people found this helpful
The new CON-50 converter...
December 30, 2013
Verified Purchase
The new CON-50 converter design with the moveable 'weight' is superior to the original piston converter which had problems. With the old design, ink would often get stuck up at the wrong end of the converter and ink flow was affected. Now, with the help of the small, cylindrical weight, gravity will pull the ink down towards the feed nipple when a Pilot pen is moved into the writing position.

Montblanc and Montegrappa also modified their converters in this way several years ago. The weight makes up for a flow problem that often occurs with converters that inhibit the intended exchange between air and ink (L. Waterman realized this need). Many converters are not designed or made correctly and extra air leaks into a converter throwing off the special balance between ink going out and air coming in to replace the ink. If the ink doesn't move back and forth in the converter the way water moves back and forth in a carpenter's level, something is wrong! The new CON-50 helps make up for a converter deficit.

The redesigned CON-50 should fit most cartridge/converter Pilot/Namiki fountain pens, like the 'Capless/Vanishing Point' and Pilot Prera fountain pens.
1 person found this helpful
So far I've used this...
January 23, 2013
Verified Purchase
So far I've used this with no trouble. My only gripe is that it's quite small compared to other converters. However the suction of the piston is very good and fits securely into my Pilot Metropolitan pen. I would recommend this for that pen if you're not a fan of the squeeze converter that it comes with.
1 person found this helpful
The Con-50 converter...
January 21, 2013
The Con-50 converter does fit in the Pilot Cavalier Duo-Body, a fountain pen which is slighter wider than the Cavalier.
1 person found this helpful
I found that this converter...
September 10, 2010
Verified Purchase
I found that this converter had a bit of trouble getting suction when installed on a pen that has never had cartridge ink run through it. I eventually got it to fill about 1/4 of the way, then wrote for a while, which apparently gave the ink a chance to distribute through the fins in the feed tube (visible through the barrel of the clear body Penmanship), after which it could be filled at least 3/4 of the way with Noodlers' standard ink.
1 person found this helpful
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