Grundfos' BoosterpaQ Pressure Boosting Systems are designed to meet changing capacity requirements with maximum efficiency. They maintain reliable, consistent water pressure for multi-story buildings, food industries, water treatment, water parks, fountains, golf courses, agriculture, sports arenas and nurseries. BoosterpaQ systems use rugged and energy-efficient CR multistage pumps-the industry standard for trouble-free operation. "Smart" controllers and motors with built-in variable frequency drives can regulate BoosterpaQ systems so constant pressure and optimal efficiency is maintained as usage fluctuates. Grundfos Pumps.