Model "P1", Sales Kit B For Product Code: P12-B1A7-160000SMA, Single Stage Pressure Reducing Regulator; 1/4" Size, Cv'=0.06; Brass Body, 6061 Al Spring Chamber; 302 SST W/Tefzel Ring Diaphragm,Pctfe Seat,316l SST Seat;Retainer,316l SST Poppet,Inconel X-750 Poppet Spring,Port;Configuration "A"; Fnpt End Connection; 5-500 PSIG Range Spring; No Outlet Gauge; No Inlet Gauge; Self-Relieving; Cleaned For Oxygen Service Per Spec #S-1134