Detailed Product Description Common Pressure meterCase size: 1.5, 2 and 2.5 inchesCase material: steel, black steel, chrome-plated steelTube and socket: brass, steel with plating nickelConnection: 1/8, 1/4, 1/2, 3/8 inches, NPT, BSP or BSPTType: bottom or backScale range: 30Hg-0-10000psiWindows: acrylic, polycarbonate and perspex for choiceAccuracy class: 1.0, 1.6 or 2.5