Feature:1. WIDE APPLICATION: This micro vacuum pump is widely used in instruments and equipment, chemicals, household appliances, aquariums, and other fields.2. ENGINEERING PLASTICS MATERIAL: Made of engineering plastics, the pump has explosion proof safety performance, corrosion resistant, and pressure resistant, ensures a long life span.3. SAFE USE: The micro air pump is equipped with a pressure switch and safety valve to ensure that the pump is not damaged and control the normal operation of the pump. Micro electric vacuum pump with large air volume and good performance.4. EASY TO INSTALL: This air pump is small and compact in size, light in weight, which is easy to install and provides many conveniences for daily life.5. IDEAL REPLACEMENT: Wonderful replacement for the old and damaged parts, fine workmanship, attention to details, helps you improve the working efficiency!Specification:Item Type: Micro Vacuum Pump Material: Engineering PlasticRated Voltage: DC6VRated Current: Less than or equal to 450mAPower: 2.7WNozzle Diameter: Approx. 4mm / 0.16inVacuum Flow: 1.0 to 3.5LPMMaximum Vacuum Degree: Less than or equal to - 60Kpa (- 450mmHg)Noise: Less than or equal to 65db (Approx. 30cm / 11.8in away)Life Test: Greater than or equal to 200 hours (continuous).Package List:1 x Air Pump