Specifications Item Model Number: RS-1 Power: 1/4 HP, 180W Free Air Displacement: 3.5 CFM/99 L/minin Ultimate Vacuum: 5 Pa/37.5 Microns Air Inlet Ports: 1/4'SAE Compatible Refrigerants: R134a, R22, R410a Package Content 1 x Vacuum Pump 1 x Vacuum Gauge 1 x 3 Gallon Vacuum Chamber 1 x 5 ft Vacuum Hose 1 x Protective Pad 1 x Wrench 1 x Tempered Glass Chamber Lid 1 x 0.21qt./200 ml Vacuum Oil Bottle 1 x User Manual