The Parker Brand is what makes me particularly happy because I wanted to change for my Parker pen from the slider on the converter piston converter.
Normal ink cartridges do not fit particularly well into the Parker or other brand pens, as most brand filler have somewhat wider versions of the cartridge. The brand cartridges wiedrum are more expensive than a keg and you also can not use different colors of ink.
The converter is again inserted into the filler no longer even taken out.
The filler is dipped into the ink and then the ink is pulled according to a piston, which takes place a little more evenly than a slider.
The piston has in contrast to the shift converter a rubber ring, but no bullet, so that the press out of ink is easier -
at the same time it can take a little more ink.
The converter seems well made and feels dibasic. Now we just have to test its durability.
For price unfortunately I can not say much. I think 5-10 euro + free shipping will already be okay.
Where there are also converters that are more favorable and determined work just as well ^^
