Electric Operated Drum Pump Hose Inside Dia 1 in Max Head Pressure 12 psi Max Oil Flow 7 gpm Max Outlet Pressure 12 psi For Use With 9921 EX Rated Voltage 220V AC Suction Tube OD 1 5/8 in Hose Length 72 in Suction Tube Length 39 in Cord Length 12 ft Includes Bung Adapter Yes Runs Dry Yes Nozzle Operation Manual Thermal Protection Yes Frequency (Hz) 50/60 Hz Power Source Electric Variable Speed Yes Includes Discharge Hose Yes Self-Priming Yes