You Are Looking at A OIL-LESS VACUUM PUMP: Twin Piston 1/2 HP 4.5 CFM, Good for Goat and cow Milker Pulsator Hookup, Medical, science Laboratory and Workshop Applications. Push and/or pull, so it can be used as a compressor as well. No oil mist problem and Save the oil on the run! Zero maintenance cost. FEATURES: OIL-free twin piston vacuum pump or compressor; Designed and manufactured with the high quality in materials and workmanship; Quiet run at wide temperature ranges, from subzero to 110 degree F; Free Flow Rate: 4.5 CFM; Push and pull/compressing and vacuum capable. Max Vacuum: 25 inch Hg; Thermal protected 1/2 HP motor; Power Supply:120 VAC, 60 Hz; Insulation Class B; Come with 5 ft power cord with UL plug; Capacitor: 60 uF, cased in and protected; Come with 4 rubber feet to reduce/absorb vibration and noise; Physical Dimensions: Size: 11 X 6 X 8 inch; Shipping Weight: 28 lb. Intake Port: 1/4 female NPT; Optional adaptor to 1/2 barb; One year warranty; Optional addition: mini dust filter on the intake port, to filter away the dust from the intake air, extend the life of the pump; Optional addition INCLUDED: Mini muffler on the exhaut port for quieter operation; Optional addition INCLUDED: Adapter from 1/4 NPT to 1/2 barb available; Packing List: Pump, model WVP4, one unit Power cord with 110 VAC UL plug: 1 unit each, installed Capacitor protector case: 1 unit, installed Motor run Capacitor: 60 uFd, 1 unit, installed User Manual: 1 copy Track Page Views WithAuctiva's FREE Counter