Model "1465" Pressure Reducing Regulator,; 1/4" Size,0.109" Orifice; Cf8m SST Body & SST Spring Chamber; S40m Trim: 316SST With Stellite Seat,Elgiloy Diaphragm; Npt Screwed; 180-300 PSIG Range Spring (Includes Opt-80: High Outlet Pressure;Construction)