I am trying to decide which of these wall-hungs will be the best option in an attic bathroom. The floor joists make it almost impossible to install a conventional floor drained toilet, so these options look good. However, I'm having trouble - looks like the Kimera and Tessera are "in wall" tanks while the Glenwall and Crane are not. But it seems that all four require a "carrier" and it's not clear whether the carrier is part of the toilet when you order it.
I'm leaning towards in-wall tank for space conservation but haven't been able to tell if the in-wall tank doubles as a carrier. Help!