Engine Fuel System Cleaning Machine EF-520 Technical Parameter: 1)Working air pressure:40-100psi 2)Weight:21kg 3)Length:440mm 4)Width:330mm 5)Height:1075mm Adopt and import the professional diaphragm pump with to output the pressure, small to fluctate and have a long service life.Remove carbon effectively, reach fuel-efficient and reduce harmful waste gas discharge. Make engine performance recovers to be new.