Detailed Product Description Common pressure gaugeSizes: 1.5, 2, 2.5, 3.5, 4, 4.5,6, 8 and 10 inches availableCase material: black steel, chrome-plated availableTube and socket: brassConnection: 1/2-inch PF, 1/8, 1/4, and 3/8 inches PF, NPT, BSP or BSPT availableType: bottom and back connectionScale range: -1 to +600 barsWindows: glass, acrylic, perspex and polycarbonate lens are ...