Impeller 6-1/4 IN. Series 60 Bronze 2X6.25 Used On: 172X31 MF Series 60 2X2X6-1/4 All Bronze / 172X31 172X32 MF Series 60 2X2X6-1/4 Bronze Fitted BTO / 172X32 172671 MF Series 60 616S Inline Pump 1HP 1750 115/208-230/1/60 172752 MF Series 60 616T Inline Pump 1HP 1750 208-230/460/3/60