Model P7, Rev A, High Flow/Sensitivity Pressure Reducing Regulator; 1/2" Size, Cv'=0.8; 316L Stainless Steel Body, Trim, And Spring Chamber; TFE Main Valve Seat, CTFE Vent Valve Seat; Porting Configuration A; FNPT End Connection; 10-300 PSIG Range Spring; No Outlet Gauge; Non-Vented Construction Opt -6 For Spring Loaded Design; Cleaned For Oxygen Service Per Spec #S-1134