Air Compressor Pump Electric Adjustable High Pressure 30Mpa/4500Psi Inflator Item Type: High Pressure Air Compressor PumpMaterial: MetalFillable Container Capacity: 0-3L Pressure Range: 0-40mpa Working Pressure: 0-30mpa/0-4500psi Compression Level: Two-Stage Compression Power: 1800W Thermometer: Power Supply: 2Pcs LR44 Button Batteries (Not Included) Rated Battery Capacity: 160mAhCooling Method: Air Cooling + Water CoolingOutlet Pipe Connector Type: 8mm/0.31in Quick Connect Female Connector, American Tire Connector, 1 x M10 External ScrewApplication: Suitable for car tire inflation, industrial high pressure test, high pressure container inflation, CO2 aquarium cylinder inflation, mini diving bottle inflation, etc.How e:1: Check/add oil to the corresponding position (see the manual or ask customer service for details).3. Install the oil-water filter (the gasket is already installed at the factory and just need to tight it appropriately).4. Install the air outlet pipe. 5. Install the water pump. 6. Turn on the power supply of the air pump and start water circulation.7. Connect the outlet pipe to the container, tighten the pressure relief valve after starting the machine, adjust the required air pressure, and press the switch to start inflation.