Specifications: Speed: 1 L/S. Rated Voltage: 110V. Rated Frequency: 60Hz. Rated Power: 1/6 HP. Pressure: 1.5X10^4 PA RPM: 3350 RPM. This is a brand NEW vacuum pump used in core drill bases. Its a high quality unit. Let us know if you have any questions before or after purchase. Well usually answer emails questions within the hour. Thanks for shopping!