REGULATOR, PRESSURE: REGULATED MEDIUM: AIR; INLET PRESSURE: 250 PSI; OUTLET PRESSURE: 0 TO 150 PSI; INLET SIZE: 3/4 IN; OUTLET SIZE: 3/4 IN; INLET CONNECTION: FNPT; OUTLET CONNECTION: FNPT; BODY MATERIAL: AL; ADDITIONAL DATA: AIR, WITH DIAL INDICATOR OF 0 PSI TO 180 PSI, PURGE VALVE AIR PRESSURE-VPR54-2 FOR GCM FISHER SCIENTIFIC COMPANY