A 4.5" dial reads 0-300 psi and an overall size of just over 6" make this gauge a must for workstations and panels. An accuracy of +/- 0.5% full scale combined with the large dial make for quick, accurate intermediate pressure readings or other low pressure tests. Designed for recessed panel mounting by three screws / bolts through edge flange. A removable dial cover hides the mounting screws creating a clean, sleek look. Body and housing are aluminum with stainless steel wetted parts. Connections are 1/4 NPT male in a lower back mount location.