Production code 1924 indicates by Grundfos' normal coding week 24, 2019 Made in Germany Voltage: 1 x 230 V, 50/60 Hz Power range P1: approx. 3.1-1.145 W Current: approx. 0,27-8,03 A Energy efficiency index EEI: < 0,17, Part 2 Flange connection: DN80, visible on valve/flange Construction length of the pump itself: 360 mm, see model designation Electronically regulated circulation pump with integrated display and control panel DN80 connection and 360 mm build length. Mounted with valves and flanges as shown in the pictures.