Delavan 4900 Roller Pro Roller Pump, 12 V, 0.78 hp, 9.2 gpm, 2600 rpm, Inlet Connection Size: 3/4 in, Outlet Connection Size: 3/4 in, Maximum Pressure: 150 psi, 5-1/8 in OAL, 4-3/4 in OAW, 3-9/64 in OAH, Cast Iron, Includes: Permanently-Lubricated Heavy-Duty Sealed Bearings, Ultra Rollers, Viton Lip Seals