Model "1000HP" Pressure Reducing Regulator,Graphite/Nbr Gaskets; Parts Kit B; 2" Size,Gaseous Jet; Cf8m Body,Ductile Iron Spring Chamber; S3 Trim: 316SST Cylinder & Plug With Tfe Seat,Neoprene (Bc) Diaphragm; Opt-30: 300 Lb Raised Face Flanges; 30-60 PSIG Range Spring