Gast rotary vane vacuum pumps & compressors are designed for continuous-duty & low-pressure pumping applications. They feature a 50 / 60 Hz, eccentrically placed motor capable of producing power up to 1.5 HP. The pumps are permanently lubricated via an oil chamber and have self-adjusting & self-lubricating vanes, as well as a 10 ft power cord. These rotary vane vacuum pumps are available in port sizes of 3/8, 1/4 and 3/4 inch NPT on Raptor Supplies.