Model "1000LP-1+6"Diff Press Reducing Regulator,Tfe/Al-Silicat Gaskets; 3/4" Size,Gaseous Jet; Sales Kit B; Wcb Body,Cast Iron Spring Chamber With Closing Cap; S1 Trim: Metal Seat,316SST Cylinder & Plug,302SST Diaphragm; Npt Screwed; 4-15 PSIG Range Spring