I can't really tell from that picture.
The biggest issue with Pipe Organs is that sometimes they're misidentified. I've seen Xenia mislabeled as Pipe Organs and certain clove polyps mislabeled.
A true pipe organ is Tubipora musica. It should have tiny white flower-like polyps with purple/pink tubes (pipes) at the base. The skeleton should look like this:
or this:
Anything of the Knopia sp or Clavularia sp is not a true pipe organ coral, but some can look very similar. The best way to tell is really from the base. I've noticed that the deeper red-purple the base is, the healthier it usually is. Do not buy it if you don't see the polyps out, ALL (or at least most) of the polyps. These skeletons are sometimes sold for quite a bit because they have such vibrant color to them, so don't fall into that trap. Also, a true pipe organ coral should have SMALL polyps, like the size of a pencil eraser, not much bigger. If they're bigger, they're mislabled and are more likely the Knopia or Clavularia sp. The picture you posted does look like a true pipe organ to the best of my knowledge.
I honestly don't like Pipe Organ corals that much. I've found them to be finicky. They'll grow great and then a section just dies off. Sometimes that section will come back and a new section will die, or it just doesn't come back at all. If you have a dwarf angel, keep an eye on them with these corals, some like to nip at small clove polyps.