2 blue dots on the impeller shaft sleeve Aquaflo Flo-Master FMHP 1.5hp impeller Diameter - 94mm, overall height - 94mm, height excluding shaft sleeve - 47mm Vane width - internal - 13mm, 8 Vanes Part no. marked - 9169370 1.5hp for 50Hz Australian and European pumps / 2hp for 60Hz USA pumps
