Model P1 Rev A Single Stage Pressure Reducing Regulator; 1/4" Line Size, Cv=0.02; Stainless Steel Body With Stainless Steel Spring Chamber; Trim Code P: Inconel 718 Diaphragm With PTFE Liner, PCTFE Seat, 316L Stainless Steel Seat Retainer And Poppet, Inconel X-750 Poppet Spring; Port Configuration M; NPT End Connections; 3-250 PSIG Range Spring; 0-160 PSIG Outlet Gauge; 0-1000 PSIG Inlet Gauge; Mounting Bracket; Tamper Proof