... -sales serviceProducts can be manufactured with customer's brand or design Diameter of the gauges: 1.5", 2.0", 2.5", 3"Thread type ... ", 1/4", 1/2", 3/8", NPT, BSPT, BSPPressure range: 0-6000 psiScale: single scale or dualThread: BSP, BSPT, NPT, 1 ...