Compact design ensures easy installation and set-up, accessible through 'green button technology' that represents the highest usability. Features efficient EC motor technology and precise setting by 0.1m steps. Easy to maintain with manual restart, manual and automatic venting and deblocking functions, and separate settings for radiators, underfloor heating and 3 set speed settings. LED display shows energy use (watts), pressure (head), flow (L/sec), and error codes. Variable & Fixed Speed 6m Max. Delivery Head 1 Year Guarantee 3.5m³/hr Q Max. Flow Volume 40W 1 1/2" BSP IPX2D Variable & Fixed Speed 6m Max. Delivery Head 1 Year Guarantee 3.5m³/hr Q Max. Flow Volume 40W 1 1/2" BSP IPX2D