AUTOMETER PRO-COMP LIQUID-FILLED MECHANICAL PRESSURE GAUGE -- 2-5/8 in.; 0 to 400 psi; Features a red pointer for quick glance monitoring and as a safeguard against dangerous conditions; Designed for precision movement and extreme accuracy; Recommends gauge mounting cup, mounting angle ring, right angle fitting, and tachometer bracket; Requires number 4 braided hose kit and steel hose.