Product Details: 

• Environmentally Safe Priming (ESP) Pump System
• Made by Hale Products Inc.
• Part # 501-3090-01-0 
• Semi-automatic Primer with Electric Rotary Vane-type Positive Displacement
• 12VDC Power
• Self-lubricating
• Single Action Control Valve
• Delivers High Vacuum Performance by Simultaneously Activating the Whole System
• Features Enclosed Motor
• Comes with Motor/Pump Unit, All System Components, Control Valve, and Ground Strap