Model "1000HP" Pressure Reducing Regulator,Tfe/Sil. Gaskets; 2" Size,Gaseous Jet; Sales Kit B; Cf8m Body & Spring Chamber (Opt-36), Cryogenic Construction;Opt-55: Cleaned For Oxygen Service Per Spec #S-1134; S36 Trim: 316SST Cylinder & Plug With Tfe Seat,302SST Diaphragm; Npt Screwed; 35-90 PSIG SST Range Spring