Please, what does the description mean when it says, "curve alcove" for the back wall? Does this back wall fit INTO the wall or does it just have an integral shape molded into the back wall? The picture makes it look as though the back wall extends somewhat into the stud area to give more depth to the 34".A. The Sterling 72232100 has a decorative style on the back wall called the curved alcove. Both tile (flat) and curved wall surrounds share the same dimensions.
comes with back wall only where do I get the side walls tyA. The side walls that match the 72232100 are the Sterling 72205100