Hi Robert - Here's a link to the page on our website which lists the Sheaffer convertors. Most pens use the classic aerometric style convertor. http://www.pendemonium.com/ink_sheaffer.htm Best Regards, Sam robert wrote: > > Hi. I was told that you carry Sheaffer ink cartridge "converters" which > would allow me to use bottled ink for my cartridge-based Sheaffer pen. I > cannot find this product on your web site. What is the name of the product > and what category is it under? > > Thanks.