1. Environmental clean exhaust, no pollution 2. High vacuum, strong pumping 3. Adopt German technology, can replace the vacuum pump like U4,R5 4. Equipped with check valve and oil anti-suckback device 5. Continuous working for more than 3,000 hours in free of trouble 6. 100% Factory inspection to export 7. Provide the tracking service of shipment 8. Have exported to more than 20 countries Advantage: Operation from atmospheric pressure to ultimate pressure, high pumping speed also at low pressure. Low noise level. Low vibrations. Integrated exhaust filter, up to 99.9% efficient, No oil loss owing to the integrated oil return line, Exhaust gas free of oil mists Efficient air cooling. Maintenance-friendly. Optimum size-to-performance ratio. High water vapor tolerance.. The built-in exhaust filter ensures an oil-mist free exhaust gas over the entire range of operating pressures from atmospheric pressure to ultimate pressure. Cardboard box/pallet.