Fine Adjustment Valve comes with Gauge & Flow meter support with the complete set comprising Gauge Saver (3102), F/A Valve with Gauge (3005), Jacketed Flowmeter (JFM) (3050). This is specially designed to help in reducing cylinder pressure by providing variable restriction to flow of oxygen from cylinder outlet. Further, with the reduction in volume of oxygen present in cylinder, flowmeter needs to be adjusted accordingly to required flowrate. We also offer flowmeter unit without control that comes fitted with jacketed type shatter proof tubes which are calibrated to show flow rate in LPM.