... head, metal tube 3.2 or 4 side plastic bar 4.Pressure range: 10-50 psi or 10-100 ... plated zinc head, metal tube·2 or 4 side plastic bar·Pressure range: 10-50 psi or 10-100 psiBrand ... fuel consumption and avoid premature wear.Tip: Scales selection (bar, Kpa, Kg/cm2, psi)SCALE UNIT CONVERSION TABLE 1 ... BAR=100KPA EQUAL TOPSI(LB/IN2)BARKG/CM21PSI10.0690.071BAR14. ...