Abstract: Apparatus for dispensing liquid soap or other liquid from either a bag-in-box liquid container or from a bottle of liquid includes a housing. A dispenser actuator is movably mounted on the housing. A first module is provided for insertion into the interior of the housing, the first module including a bottle support and a liquid pump for pumping liquid from the bottle. A second module can also be inserted into the housing interior, the second module including a bag-in-box container support. The modules are selectively alternatively mountable within the housing interior and each of the modules is cooperable with the dispenser actuator when in the housing interior to dispense liquid from the housing interior to a location exterior of the housing responsive to movement of the dispenser actuator relative to the housing.