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
For other pilot fountain pens, this converter works wonder.
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.
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.
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!