1D4-A4T7-X500E0R0A-320

Model BQ Rev A Back Pressure Regulator, OPT-45: PTFE Gaskets; 1/2" Inlets,1/2" Outlet; Stainless Steel Body With Stainless Steel Spring Chamber; S40T Trim: 316 Stainless Steel With PTFE Seat, Fluorocarbon Elastomer (FKM) Diaphragm; Special Sch. 40 Plain End Extened Nipple End Connections; 140-300 PSIG Range Spring; OPT-25: 1/4" NPT Spring Chamber Vent Tap; Cleaned For Hydrogen Service Per Cashco Specification S-1821