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 SST W/Tefzel Ring Diaphragm,Pctfe Seat,316l SST Seat;Retainer,316l SST Poppet,Inconel X-750 Poppet Spring,Port;Configuration "J"; FNPT End Connection; 5-500 PSIG Range Spring; No Outlet Gauge; No Inlet Gauge; Panel Mount; Black Knob; Self-Relieving