Detailed Product Description YZ-63 S.S Case pressure gaugeDiameters: 1.5, 2, 2.5, 3.5, 4, 4.5, 6 inchesCase material: 304 stainless steelTube & socket: brassConnection: 1/8, 1/4, 1/2, 3/8 inches, NPT, BSP or BSPTScale range: -1-0-600 barsAccuracy :1, 1.6, 2.5Windows: acrylic, glass and polycarbonate lens are available