Model 1000HP Rev A Pressure Reducing Regulator For Standard Service; 2" Line Size, Gaseous Jet; Sales Kit A; Carbon Steel Body With Carbon Steel Spring Chamber; S1 Trim: 316 Stainless Steel Cylinder And Plug With Metal Seat, 302 Stainless Steel Diaphragm; OPT-30: Mates With ASME 300 Raised Face Flanges; 10-40 PSIG Range Spring; OPT-12: One-Step Reduced Orifice