For most agricultural spraying and other fluid transfer applications. This roller pump has Viton seals and Super Rollers. Pressure (PSI): 150, Inlet Port (in.): 3/4, Speed (RPM): 2,500, Flow (GPM): 7.0, Shaft Length (in.): 5/8, Outlet Port (in.): 3/4, Rollers (qty.): 4