Thanks, I'll check their website.
I had the pen imported from the USA and could buy another one, but I'm simply not impressed by their quality, so I wanted to repurpose the zebra g housing into a new pen.
And fitting a zebra g in any other pen is a struggle, tried that, unless the housing is designed for an Ebonite feed and zebra g. Tom's pens use plastic feeds, at least when I checked with them a few months ago.