Model "1000HP" Pressure Reducing Regulator,Graphite/Nbr Gaskets; 1/2" Size,Liquid Jet; Cf8m Body,Ductile Iron Spring Chamber; S3n Trim: 316SST Cylinder & Plug With Buna-N (Nbr) Seat,Neoprene;(Bc) Diaphragm; Opt-30: 300 Lb Raised Face Flanges; 40-100 PSIG Range Spring; Opt-14: Integral Seat