Air Operated Drum Pump Max Air Pressure 140 psi Spout Connection Size 1 in Suction Tube Material Polyethylene Self-Priming Yes Overall Length 41 1/2 in Explosion Proof Yes Discharge Connection Type Hose Barb Features High Suction Lift Even at Dry start up Self-Priming Pump Design Spout Length 7 in Food Grade No Air Outlet Size 3/8 in Bung Connection Dia 2 in Hose Length 59 in Variable Speed Yes Includes Discharge Hose Yes Noise Level 70 db Max Viscosity 500 cps