Air Operated Drum Pump Max Air Pressure 140 psi Suction Tube Material Polypropylene Self-Priming Yes Overall Length 44 in Explosion Proof Yes Discharge Connection Type Hose Barb Features Air Motor with Silencer Handle for On/Off Mixing Food Grade No Air Outlet Size 1/4 in Bung Connection Dia 2 in Variable Speed Yes Includes Discharge Hose No Motor Enclosure TEFC Noise Level 80 db Max Viscosity 1 000 cps Adapter Connection Type MNPT Duty Cycle Continuous