Model P1, Rev A, Single Stage Pressure Reducing Regulator; 1/4" Size, Cv=0.02; 316L Stainless Steel Body, 316L Stainless Steel Spring Chamber; 302 Stainless Steel With Tefzel Ring Diaphragm, PCTFE Seat, 316L Stainless Steel Seat And Retainer, 316L Stainless Steel Poppet, Inconel X-750 Poppet Spring, Port Configuration B; FNPT End Connection; 10-750 PSIG Range Spring; 0-1000 PSIG Outlet Gauge; No Inlet Gauge; Self-Relieving