Specification: Displacement: 0.27 Cubic Inches Shaft Type: 5/8″ Straight Keyed Mounting Flange: SAE A-2 Bolts Outlet Port: SAE 10 Inlet Port: SAE 12 MAX Working Pressure: 3200 PSI Peak Pressure: 3900 PSI Direction: Counter-Clockwise (Left) 1 – 4 GPM MAX Speed: 4000 RPM MIN Speed: 700 RPM Cast Iron Body and Mounting Flange Weight: 8 LBS Product Function Description: Hydraulics are manufactured with a thru-bolt design; the Mounting flange and rear cover are made of cast iron; SAE A-2 mounting flange; This gear pump has high operational and strength specs. The seals installed reduce the fluid’s internal flow and help achieve high volumetric efficiency. .