Model P1, Rev A, Single Stage Pressure Reducing Regulator; 1/4" Size, Cv=0.06; 316L Stainless Steel Body, 316L Stainless Steel Spring Chamber; 302 Stainless Steel With Tefzel Ring Diaphragm,PCTFE Seat, 316L Stainless Steel Seat, Retainer, And Poppet, Inconel X-750 Poppet Spring, Port Configuration F; FNPT End Connection; 3-250 PSIG Range Spring; 0-300 PSIG Outlet Gauge; 0-600 PSIG Inlet Gauge; Self-Relieving