... window, brass internal and connection. Product Name:iron case Pressure Gauge 1) Dial size: 1.5, 2 ... npt, bsp (g, pf), bspt (zg, pt)4) Case material: black steel, plastic, chrome plated steel, stainless steel, ... stainless steel6) Scale: single or double with psi (lb/in), bar, kg/cm2 (kgf/cm2 Kpa, mpa; ... Accuracy: 3% - 2% - 3% , ±2.5%8)Lip Material: Plastic, plastic dial face, glass dial face9)Bourdon Tube ...