MODEL P7, HIGH FLOW/SENSITIVITY PRESSURE REDUCING REGULATOR 1/2" SIZE, CV=2.0; BRASS BODY AND TRIM, BRASS SPRING CHAMBER; TFE MAIN VALVE SEAT, CTFE VENT VALVE SEAT PORTING CONFIGURATION "W"; FNPT END CONNECTION; 50-1500 PSIG RANGE SPRING; 0-2000 PSIG OUTLET GAUGE; CLEANED FOR OXYGEN SERVICE PER SPEC #S-1134;