1/2" NPT Bottom, 4" Dial, 0 to 15,000 psi/kPa, SS Liquid Filled Gauge, Dual ScaleStainless Steel Liquid Filled Gauge, Dual Scale, 1 2" NPT Bottom, 4" Dial, 0 to 15,000 psi kPa Dial: White aluminum with black and red markings Case: AISI 304 SS Lens: Polycarbonate Ring: AISI 304 SS, Crimp On Socket: AISI 316 SS with restrictor screw (dual scale only) Bourdon Tube: AISI 316 SS C or coil shaped Movement: SS Pointer: Aluminum, anodized black Welding: TIG Over pressure Limit: 25% for pressures up to 1,450 psi (9,998 kPa), 15% for