Model P1 Rev A Single Stage Pressure Reducing Regulator; 1/4" Line Size, Cv=0.06; Stainless Steel Body With Stainless Steel Spring Chamber; Trim Code 1: 302 Stainless Steel Diaphragm With PTFE Gasket, PCTFE Seat, 316L Stainless Steel Seat Retainer And Poppet, Inconel X-750 Poppet Spring; Port Configuration L; NPT End Connections; 2-50 PSIG Range Spring; 0-60 PSIG Outlet Gauge; No Inlet Gauge; Red Aluminum Knob; Relief Valve 3-50 PSIG