Space toilet in the context of "Habitation Module"

The Habitation Module for the International Space Station (ISS) was intended to serve as the station's primary living quarters. About the size of a bus, it was designed to include a galley, toilet, shower, sleeping quarters, and medical facilities. Construction of the pressurized hull was completed, but the module was ultimately canceled before launch. If it had been flown, the module would have been berthed to Tranquility.