1B2-6S97-13000000A

Model BQ Rev A Back Pressure Regulator, Graphite/NBR Gaskets; 1/4" Inlets,1/2" Outlet; Carbon Steel Body With Stainless Steel Spring Chamber; S9 Trim: 316 Stainless Steel With PTFE Seat, PTFE Coated 302 Stainless Steel Diaphragm; NPT End Connections; 20-75 PSIG Range Spring