Model 1000HP Rev A Pressure Reducing Regulator For Standard Service; 1/2" Line Size, Liquid Jet; Sales Kit B; Carbon Steel Body With Carbon Steel Spring Chamber; S3 Trim: 316 Stainless Steel Cylinder And Plug With PTFE Seat, Neoprene (BC) Diaphragm; OPT-30: Mates With ASME 300 Raised Face Flanges