... : (1)Diameter:1-1/2", 2", 2-1/2", 4" (2)Case & cover: SS304, Steel (3)Accuracy: 3-2-3% Refrigerating Pressure Gauge(1)Diameter: 1-1 ... /2", 2", 2-1/2", 4"(2)Case & cover: SS304, Steel(3 ... : brass,(5)Inlet thread: 1/4", 3/8", 1/2", NPT ,BSPT, BSP(6)Connection: brass(7)Range: 76cmHg, 1.5MPa(8)Accuracy: 3 ...