Model 1000HP Rev A Pressure Reducing Regulator For Standard Service; 1/2" Line Size, Gaseous Jet; Sales Kit B; Stainless Steel Body With Stainless Steel Spring Chamber; S36 Trim: 316 Stainless Steel Cylinder And Plug With PTFE Seat, 302 Stainless Steel Diaphragm; NPT End Connections; 150-300 PSIG Range Spring