4.5CFM Single-Stage Rotary Vacuum Pump Wine Degassing HVAC/Auto AC 4.5CFM 1/3HP High-quality Vacuum Pump Oil No-Flow Back Design Oil Viewing Window Strong Heat Dissipation Portable Handle Design Versatile Uses Ultimate Vacuum: 5 Pa,Voltage: 110 V/60 HZ,Model: RS-1,FAD: 4.5 CFM,Power: 1/3 HP