---Efficient Performance. The Grundfos Upm3 Flex As is designed to deliver high efficiency performance, significantly reducing energy consumption. It achieves this by incorporating an advanced hydraulic design and a permanent magnet motor, leading to an Energy Efficiency Index. ---Flexible Settings. The pump comes with multiple control modes such as constant curve, constant pressure, and proportional pressure. This flexibility allows you to customize the pump's operation according to the specific needs of your heating or cooling system. ---Advanced Communication Interface. This model features an easy to use communication interface. The autoadapt feature, in particular, ensures optimal system performance without constant manual adjustments.