Oberdorfer Pump Centrifugal Impeller P/N 501M-05 MAXIMUM DISCHARGE FLOW RATE 58.0 GALLONS PER MINUTE SUCTION LIFT 15.000 FEET OPERATING SPEED AT RATED CAPACITY 1750.0 REVOLUTIONS PER MINUTE MEDIA FOR WHICH DESIGNED WATER, FRESH AND WATER, SALT PUMP ROTATION DIRECTION CLOCKWISE AND COUNTERCLOCKWISE CENTRIFUGAL PUMP DESIGN AXIAL FLOW CENTRIFUGAL PUMP IMPELLER QUANTITY 1 CENTRIFUGAL PUMP IMPELLER SUCTION TYPE SINGLE STAGE QUANTITY 1 INTAKE CONNECTION QUANTITY 1 To read more visit http://www.oberdorfer-pumps.com/Spec_sheets/501%20series%204%20pg.pdf