Grundfos’ MAGNA circulating pump features unique AUTOADAPT technology that automatically and continuously adjusts operation to achieve optimum efficiency. Grundfos’ newest range boasts the highest energy-efficiency rating available for circulators in North America. The energy-optimized, 115-volt variable-speed wet rotor circulator features a permanent magnet motor design and can be used for commercial hydronic heating applications. MAGNA3 is equipped with AUTOADAPT and the new FLOWADAPT control mode, which reduces the need for pump-throttling valves.Circulator pump