ARKSEN Single Stage, Rotary Vane Electric Vacuum Pump HVAC w/Vacuum Oil Bottle, 1/3 HP, 4-CFM, Black Free Air Displacement: 4CFM; Factory Micro Rating: 75 Microns (10pa) Motor Size: 1/3HP; Pump Speed: 1720 RPM; Voltage: 110V, 60HZ Oil Capacity: 200ML Oil viewing windows allows you to monitor oil quality and levels Perfect for Home or Business, Jewelry Making/gluing Jobs, Gas-analysis and Hot-forming plastic Lightweight cast aluminum construction for maximum durability