Abstract: A modular system for, especially, dry basin fountain installations includes a housing having a water supply inlet, a drain outlet, an electrical supply inlet and electrical junction box, for removable and interchangeable installation of a variety of individual or multiple fountain components within each housing, including water jet assemblies, lighting assemblies, and audio speakers, for supplying water to and draining water from each housing to a water reservoir, and for controlling the operation of each fountain component. Water supply lines, drain lines, and electrical lines may be routed between all housings and a water reservoir and an electrical supply center, so that fountain components may be installed, removed, and exchanged without disturbing the surface in which the fountain is installed.