Model 1000LP Rev A Pressure Reducing Regulator, PTFE/Al-Silicate Gaskets; 1" Line Size, Liquid Jet; Sales Kit B; Carbon Steel Body With Carbon Steel Spring Chamber; S40 Trim: 316 Stainless Steel Cylinder And Plug With Metal Seat, Neoprene (BC) Diaphragm; OPT-30: Mates With ASME 150 Raised Face Flanges