Grundfos BoosterpaQ pressure boosting systems can be used for water supply, buildings, industry and irrigation applications. BoosterpaQ systems maintain constant pressure for waterworks and water distribution networks. They also provide comfortable and consistent water pressure for various institutional buildings and industrial plants. BoosterpaQ sytems include Grundfos CR multistage pumps, MLE motors with built-in variable frequency drives and the Control 2000 smart controller to switch the system on/off or regulate the frequency of up to six parallel connected pumps. Grundfos.