Model 1000HP Rev A Pressure Reducing Regulator For Standard Service; 2" Line Size, Liquid Jet; 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; OPT-30: Mates With ASME 150 Raised Face Flanges; 10-40 PSIG Range Spring