Model "8310HP" Pressure Reducing Regulator, Graphite/Nbr Gaskets; 1-1/2" Size; Wcb Body & Spring Chamber; S40 Trim: 316SST Metal Seat,Neoprene (Bc) Diaphragm; 300 Lb Raised Face Flanges; 130-200 PSIG Range Spring (Includes Opt-80: High Outlet Pressure;Construction)