Model P2 Rev A Single Stage Cylinder Gas Pressure Reducing Regulator; 1/4" Line Size, Cv=0.02; Stainless Steel Body With Stainless Steel Spring Chamber; 302 Stainless Steel Diaphragm With PTFE Gasket, PCTFE Seat, 316L Stainless Steel Seat Retainer And Poppet, Inconel X-750 Poppet Spring; Port Configuration F; CGA Inlet Connection #580 With 1/4" NPT Outlet Connection; 3-250 PSIG Range Spring; No Outlet Gauge; 0-5000 PSIG Inlet Gauge