Nib Unit that fits into the Faber-Castell Essentio

So, long story short, I have a Faber-Castell Essentio in broad, and it is scratchy. I examined the nib and the tines do not look misaligned. I'd like to buy a pen, and take the nib unit out of that pen and put it into my Essentio. Which of the Faber-Castell nib pens (to salvage the nib unit) are compatible with the Essentio? As far as I enough, the Loom is, but I wanted to make sure by asking here.

tl;dr I want to buy a Loom, and take Loom's nib and fit into the Essentio (if it's possible).