The high efficiency pump WILO Stratos PARA is primarily installed in OEM applications for the conveyance of water in heating and cooling systems. Compared with standard pumps, this pump reduces the electricity consumption and therefore the operating cost by up to 80 percent. Significant for this is the use of a new, highly efficient EC-motor-technology. The innovative product concept is based on a completely new arrangement of individual components. This way it was possible to position all relevant accessories and control elements towards the user to make them easily accessible and controllable. The setting of the respective operating state of the pump takes place by using external signals or the red selector knob. The electrical connection is enabled via a plug on the module that simplifies connection even under difficult installation conditions.