The inlet and outlet are round and smooth, easy to connect, tight and firm, and not easy to fall off. Suitable for vacuum packaging machine, vacuum pump, inflator, fish tank, aquarium oxygenation, negative pressure pump, pressurization technology, etc. The motor casing is made of High-quality materials, which is and not easy to rust. Pure copper coil, strong power, high efficiency, smooth, low heat generation, and low noise. Product Name: Vacuum Pump Motor Rated Voltage: DC 12V Rated Current: Less than or equal to 1000mA(12V) Power: 12W Air Nozzle Diameter: 7mm Vacuum Flow Rate: 10-15L/min (LPM) Vacuum Level: Less than or equal to -58Kpa (-435mmHg) Positive Pressure: or equal to 100Kpa (750mmHg) Noise: Less than 65db (30cm away) Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Colour:Photo Color Material:Metal Package Contents: 1 x Vacuum Pump Motor Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.