Xantia spheres

[protemporum]

Hello, I need to replace the spheres on my Xantia, the world has changed since i last changed them (eight years ago) and my then supplier no longer stocks. A search of ebay has confused me a little, two names i do not know appear a lot; I.F.H.S. and FEBI Bilstien. I am familiar with the name Bilstien - shock absorbers, but not FEBI. Are they suitable ? How do these two compare with original Citroen ?
I look forward to any replies. Thankyou.

[Kees]

IFHS, is the best brand!!
But isn't possible to regas the spheres?