Dwyer PTGD-SA11A is a piston-type differential pressure gauge designed for accurate measurement in compatible gases and liquids. With a temperature range of up to 176°F (80°C) and an accuracy of ±2% FS, it can be mounted in any position. The wetted materials include aluminum or 316 SS for the gauge body, piston, and spring, with Buna-N as the standard seal. The gauge has a pressure limit of 3000 psi (206 bar) for aluminum body models and 6000 psi (413 bar) for SS body models. It has 1/4" female NPT end connections as standard, with back or bottom connections available. The dimensions are 2.5" (63 mm) or 4.5" (115 mm), and the window is made of acrylic.