The BRAY 551000-74603533 is a pneumatic filter regulator from Series 55, featuring a zinc body with non-removable rising knob. It operates within a temperature range of 32F to 175F (0C to 80C) and has a flow capacity of 30 SCFM. The regulator offers adjustable pressure control from 0-250 PSIG (0-1.70 MPa, 0-17.2 BAR) and comes with 1/4" NPT or G 1/4 connections.