MODEL "P3", SALES KIT FOR PRODUCT CODE: P39-B3F7-15FK000MA; TWO STAGE CYLINDER GAS PRESSURE REDUCING REGULATOR 1/2" SIZE, CV=0.20; BRASS BODY, 6061 AL SPRING CHAMBER; 302 SST W/TEFZEL RING DIAPHRAGM,TFE SEAT,316L SST SEAT RETAINER,316L SST POPPET,INCONEL X-750 POPPET SPRING,PORT CONFIGURATION "F"; FNPT END CONNECTION