Dwyer PTGD-AC11A is a differential pressure piston-type gauge suitable for use with compatible gases and liquids. With an accuracy of ±2% FS and a temperature range of up to 176°F (80°C), it can be mounted in any position. The gauge body and piston can be made of aluminum or 316 SS, with a 302 SS spring and Buna-N seals. It has a pressure limit of 3000 psi (206 bar) for aluminum body and 6000 psi (413 bar) for SS body. The process connection is 1/4" female NPT, with back or bottom connections available. Available in 2.5" (63 mm) or 4.5" (115 mm) dimensions, it features an acrylic window for clear reading.