DESCRIPTION: Indication Range: 0~3,000psi Case Nominal Diameter: 11/2", 2", 21/2", 3", 4", 6" Case Material: Plastic, Mild Steel; Stainless Steel Windows: Polycarbonate Movement: Brass, Stainless Steel Connection: Bottom Connection, Center Back Male Connection Inlet thread: 1/2",1/4",1/8", 3/8", BSP, BSPT, NPT or According to customers requirements Filled Oil: Glycerine, Silicone Oil Scale: psi, bar, Mpa, Kpa, kg/cm2, Hg single or dual scale or According to customers requirements