Model P1, Rev A, Single Stage Pressure Reducing Regulator; 3/8" Size, Cv=0.20; Brass Body, 6061 Aluminum 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 C; FNPT End Connection; 2-100 PSIG Range Spring; No Outlet Gauge; No Inlet Gauge; Panel Mount; Black Knob; Self-Relieving And Mechanical Stops; Cleaned For Oxygen Service Per Spec #S-1134