The Grundfos MAGNA3 25-100 180 1x230V PN10 Light Commercial Circulator Pump is a single phase light commercial circulator pump. The Grundfos MAGNA3 MAGNA3 is a range of light commercial heating circulator pumps designed for efficiency, performance and reliability, while incorporating the latest pump control and management technology. The pumps are fitted with permanent magnet (PM) technology to maximise reliability. The Grundfos MAGNA3 AUTOADAPT setting will analyse the heating system and make parameter adjustments to find the most efficient settings automatically. Low noise levels and minimal maintenance requirements have made the MAGNA3 a popular choice for installations that require a high specification and flexible management and control options.