Air Operated Drum Pump Max Air Pressure 80 psi Suction Tube Material Stainless Steel Self-Priming Yes Overall Length 50 in Explosion Proof Yes Discharge Connection Type Hose Barb Food Grade No Air Outlet Size 1/8 in Bung Connection Dia 2 in Hose Length 72 in Motor HP 1/2 hp Variable Speed Yes Includes Discharge Hose Yes Noise Level 78 db Max Viscosity 450 cps Adapter Connection Type MNPT Duty Cycle Intermittent Includes Suction Tube Yes Includes Bung Adapter Yes