Model "1000HP" Pressure Reducing Regulator,Tfe/Sil. Gaskets; 3/4" Size,Liquid Jet; Sales Kit B; Bronze Body & Spring Chamber (Opt-5), Cryogenic Construction;Opt-55: Cleaned For Oxygen Service Per Spec #S-1134; B5 Trim: Brass With Tfe Seat,Phos.Bronze Diaphragm; Npt Screwed; 90-150 PSIG SST Range Spring;