The Grundfos MAGNA1 D 100-100 F 450 1x230V PN6 is a 240V light commercial central heating circulator pump with all wetted parts in cast iron. This pump is hard-wearing and suitable for pumping hot water from boilers and supplying radiator or underfloor systems. This version has a maximum flow rate of 18.3 litres/second, or 1098 litres/minute and a maximum head of 6m. The pump has DN100 Flanged connections and port-to-port measurement of 450mm. The Grundfos MAGNA1 range are based on the high specification MAGNA3 range, but with a reduced feature set. However, the MAGNA1 retains the same high energy efficiency and build quality.