SILVERCAST 8 ROLLER PUMPSeries 7560 8 Roller Pump with alloy housing Scoopless rotor and preferred by many manufacturers of field sprayers Usable at speeds up to 1000 RPM. Brand Hypro Max Gallons Per Minute 22. 5 GPM Max PSI 300 PSI Number of Rollers 8 Pump Body Silver Series Pump Port Size 3 4 Inch Pump Seal Viton Seal Pump Type Roller Pump Roller Type Super Roller Rotation Standard Counter Clockwise Shaft Size 15 16 Inch Solid Shaft