Model "DL" Pressure Reducing Regulator,Graphite/Nbr Gaskets; 1-1/2" Size; Lcc Body & Spring Chamber; S40v Trim: 316SST Metal Seat With Neoprene (Bc) Diaphragm; Opt-34: 300 Lb Raised Face Flanges With 14" Face To Face Dimension; 2-15 PSIG Range Spring