Model 1000HP Rev A Pressure Reducing Regulator For Standard Service; 2" Line Size, OPT-27: Viscous Jet; Stainless Steel Body With Stainless Steel Spring Chamber; S0 Trim: 316 Stainless Steel Cylinder And Plug With Metal Seat, PTFE Coated 302 Stainless Steel Diaphragm; NPT End Connections; 30-60 PSIG Range Spring