2 HP 4500 psi High Pressure Air Compressor for 12L Scuba Tank Refill 110V / 220V. 110/120v 20Amp (need with a 30Amp circuit breaker at home). Of stage and cylinder: 4 – Power Motor: 1.5kw/2HP 110V/220V – Temperature: 10 degree more than environment – Driven: Belt driven – Shout down: Auto stop. Pressure indicate: Gauge – Protection: Safety value in last stage – Filtration: Oil separator and filter – Lubricant: ISO 150 lubricant oil (Not included). Tank Capacity: 12 L (Not included) – Noise: Less than 72 dB – Weight: 55kg. Valve plate gasket Primary piston ring Secondary intake valve plate Primary intake valve Primary exhaust spring Cushion Quick connect hose + handwheel. The bottle filling of the air compressor must be greater than the pressure of the gas cylinder to fill the bottle! Air Compressor Pressure>Cylinder Pressure? Suggestion for bottle filling: 3L-12 L / 3L? 12 L 3. Use of gas cylinder: Fire fighting, diving breathing 4. Recommended operating time of the machine (machine operating load range): The temperature cannot exceed 85°C 5. Estimated filling time: Recommendations for filling 12L gas cylinders: 1 The cylinder pressure is 200bar, and the estimated time is 24 minutes 2 The cylinder pressure is 300bar, and the estimated time is 36 minutes. Oil level must be checked every 25 hours, oil must be replaced every 300 working hours average, and 50 working hours to change oil for the first time. Lubricate Oil Recommend: Mobil Special 20w50, Mobil Rarus 827-829, Anderol 755 3. The machine must not be working without oil, so you must pay attention to the level of oil. Check the electric voltage is the same as your local electric supply.