Model 1000HP Rev A Pressure Reducing Regulator For Standard Service; 1-1/2" Line Size, Liquid Jet; Sales Kit B; Stainless Steel Body With Stainless Steel Spring Chamber; S3N Trim: 316 Stainless Steel Cylinder And Plug With BUNA-N (NBR) Seat, Neoprene (BC) Diaphragm; OPT-30: Mates With ASME 150 Raised Face Flanges