With industrial-grade technology, the NAVAC 12 CFM Vacuum Pump NP12DM solves the problems of long-time evacuation, inadequate vacuum level in the service for large commercial refrigeration or central AC systems. The dual-stage rotary vane pump and inverter motor lead to faster evacuation and a deeper vacuum. Integrate pump structure and built-in oil back-flow prevention assure superior performance and reliability. The combination of enhanced technology and aesthetic design enables the NP12DM to be a top-class product.FeaturesIndustrial Grade Design- High quality, super high vacuumBrushless DC Technology- Light and efficientIntegrated Dual Stage Pump- High vacuum level down to 5 micronsOil Backflow Prevention- No system of oil contamination during power failureOil Drain Valve- Ball valve design, easier to drainSight Glass- Easy to see and eliminate oil shortage