Model "1000HP" Pressure Reducing Regulator,Graphite/Nbr Gaskets; 2" Size,Gaseous Jet; Wcc Body,Wcb Spring Chamber; S2 Trim: 316SST Cylinder,416SST Plug With Metal Seat,302SST Diaphragm; Opt-30: 150 Lb Raised Face Flanges; 50-150 PSIG Range Spring; Opt-14: Integral Seat