Model 1000HP Rev A Pressure Reducing Regulator For Standard Service; 1" Line Size, Gaseous Jet; Sales Kit B; Stainless Steel Body With Stainless Steel Spring Chamber; SB Trim: 316 Stainless Steel Cylinder And Plug With BUNA-N (NBR) Seat, BUNA-N (NBR) Diaphragm; NPT End Connections