MODEL "POSR-2" PILOT OPERATED PRESSURE REDUCING REGULATOR,TFE GASKETS 1-1/2" SIZE; MAIN VALVE - WCB BODY, SST CYLINDER, DUCTILE IRON BONNET, PILOT VALVE - DUCTILE IRON BODY & CAST IRON SPRING CHAMBER, MOUNTING POSITION "H"; S2 HARD TRIM: MAIN-416SST SEAT,17-4PH PLUG,PILOT-416SST,302SST DIAPHRAGM; 150 LB RAISED FACE FLANGES; 10-40 PSIG RANGE SPRING;