Dwyer PTGD-AA03A is a differential pressure piston-type gauge designed to measure pressures up to 3000 psi (206 bar) for the aluminum body or 6000 psi (413 bar) for the SS body. With an accuracy of ±2% FS, it can be mounted in any position and is compatible with both gases and liquids. The gauge features a 2.5" (63 mm) or 4.5" (115 mm) dimension, an acrylic window, and various wetted materials including an aluminum or 316 SS gauge body, piston, and 302 SS spring. The standard seals are made of Buna-N, with options for PTFE and ceramic magnet as well. The PTGD-AA03A comes with 1/4" female NPT end connections, with the availability of 1/4" female NPT back or bottom connections. Additionally, all styles are compatible with 1/4" BSP connections.