Laboratory table top vaccuum pump by welch model 1402, serial 30606a. Features dual stage, rotary vane design, vacuum rating of 13. 3 mpa, displacement of 5. 6 cfm, table top design, belt driven vacuum pump with 1/2 horsepower drive by emerson @1725 rpm, 115/230/1 phase voltage, 60 hz, (wired for 115 service), motor mounted on/off toggle switch, pump has 1" inlet and outlet with npt connections, oil level sight glasses on side of pump, oil drain and mounted on factory base plate.