Rotary Vane Type, Two-Stage High Vacuum Pump Includes 1 quart of oil designed specifically for use with Hyvac pumps (part# 9301085O / OIL-001). Free Air Displacement: 85 Liters per Minute (3 Cubic Feet per Minute) Ultimate Vacuum: 25 microns/laboratory conditions Pump Speed: 1725 RPM Motor: 1/2 HP 110V, 60Hz Oil Capacity: 27oz. (785cc) Operating Temperature: 30º F to 170ºF Intake Port: 3/8” OD for 3/8” ID Tubing Weight: 30 lbs. Dimensions: 11” H x 14” L x 5 ¼” W (27.5cm x 35cm x 12.5cm)