Description: Indication Range: 0~20, 670bar Case Nominal Diameter: 1 1/2"; 2"; 2 1/2"; 3"; 4"; 5"; 6" Case Material: Mild Steel; Stainless Steel Movement: Brass; Stainless Steel Connection: Bottom Connection, Center Back Male Connection Inlet Thread: 1/2", 1/4", 1/8", 3/8", BSP, BSPT, NPT Filled oil: Glycerine, Silicone Oil Scales: Psi, bar, Mpa, Kpa, kg/cm2, Hg single or dual scale Some Pressure Gauge For Tank Container: TENGLONG CODE DESCRIPTION PG00001 63mm/0-7bar/psi/brass bottom connection/glycerin / 1/4¡±bsp PG00002 63mm/0-7bar/psi/full SS bottom connection/glycerin / 1/4¡±bsp PG00003 63mm/0-6bar/psi/brass bottom connection/glycerin / 1/4¡±bsp PG00004 63mm/0-10bar/psi/brass bottom connection/glycerin / 1/4¡±bsp PG00005 63mm/0-6bar/psi/full SS connection/glycerin / 1/4¡±bsp PG00006 63mm/0-40bar/psi/brass bottom connection/glycerin / 1/4¡±bsp PG00007 63mm/0-15bar/psi/glycerin/1/4"bsp with drag-pointer