The MAGNA3 is an innovative member of the Grundfos family of high quality circulator pumps. The MAGNA3 pumps make up a broad range of small, medium and large circulator pumps fitted with communication equipment and motors with electronic speed control based on permanent magnet (PM) and compact stator motor technology. With the MAGNA3, you can stop worrying about complicated pump settings. Simply install the pump and leave it on the factory, AutoAdapt. The MAGNA3 will automatically analyze the heating system, find the optimum setting and then continuously adjust its operation to changes in demand. The result is optimum comfort and minimum energy consumption. In addition, MAGNA3 pumps are extremely flexible and reliable and have low noise levels, long life and no maintenance requirements. They are fitted with IR communication and can offer external control and monitoring via expansion modules.