I have a Sheaffer B 1.8mm. This pen use cartridge, I want produce to fill my pen with regular fountain ink with out cartridge.I do not what is correct name maybe is pen converter. I want to buy the product I like my pen is color black. Thank for all Francisco J Ortiz-Perez.
A Sheaffer converter should do what you want: it fits in place of the standard Sheaffer cartridge. Sheaffer converters can be found here: