I haven't seen a ton of these, but I really don't think that is a Vetus, at least not one that matches something in their line recently. It just doesn't look like the ones I've seen from them. The housing is all one piece and the radial set bolts just don't look like theirs.
Having said that, if I were looking to replace one, Vetus would be the first place I'd look. I'd bet there is a good chance they've got something that'll work.