Model DL Rev B Pressure Reducing Regulator For General Service; 2" Line Size; Carbon Steel Body And Spring Chamber; S3 Trim: 316 Stainless Steel With PTFE Seat And Neoprene (BC) Diaphragm; Mates With ASME 300 Flanged End Connections (14" Face To Face Dimension); 70-150 PSIG Range Spring; Polyethylene Vented Spring Chamber Plug; Opt-56: Non-Oxygen Cleaning Per Cashco Specification S-1542