Brass · Multi-jet impeller wet rotor · Calibrated · Installation horizontally · For cold water up to +40° C · Nominal flow: Q3 4,0 m³/h · Maximum flow: Q4 5,0 m³/h · Operating pressure: max. 16 bar · Complies with DVGW worksheet W270 and KTW recommendation · Housing corresponds to DIN 50930-6 and DVGW worksheet W421 · Roller counter with 5 number rollers: 5 Numbers of rolls for m³ display (number of rolls up to 99.999 m³) · Protect from frost! · 1" ET, 190 mm