Using solenoid valve design structure to prevent current return. Integral pump body, improve the vacuum. Easy to enter the oil. To prevent lack of oil. ABS plastic floor, shock absorption function. Increase the heat sink. Pure copper inlet, thread diameter of about 14mm. Pumping rate: 1.8CFM, 50ml / min. Ultimate vacuum: 150micron, 20PA. Motor power: 1 / 6HP, 125W. Size: 256 93 175mm. 1 x Rotary Vane Vacuum Pump (Note:The Oil not include According to international logistics policy).