Model 1000HP Rev A Pressure Reducing Regulator, Grafoil Gaskets (Opt-46G); 1" Line Size, Gaseous Jet; Sales Kit B; Carbon Steel Body With Carbon Steel Spring Chamber; S2 Trim: 316 Stainless Steel Cylinder, 416 Stainless Steel Plug With Metal Seat, 302 Stainless Steel Diaphragm; NPT End Connections; 50-70 PSIG Range Spring