Bell & Gossett bronze impeller, with a 5-1/4" outside diameter, for B&G Series 60 models 619S and 619T pumps in both iron and bronze. Impellers are installed on the end of the pump shaft, which spins the impeller in turn pumping water, or other liquid, throughout your system.Used On:172X25 MF Series 60 1-1/2X1-1/2X5-1/4 All Bronze / 172X25172X26 MF Series 60 1-1/2X1-1/2X5-1/4 Bronze Fitted BTO / 172X26172668 MF Series 60 609S Inline Pump 3/4HP 1750 115/208-230/1/60172739 MF Series 60 609T Inline Pump 3/4HP 1750 208-230/460/3/60172716 MF Series 60 B609S Inline Pump 3/4HP 1750 115/208-230/1/60172742 MF Series 60 B609T Inline Pump 3/4HP 1750 208-230/460/3/60