MODEL "DA1" SALES A KIT FOR PRODUCT CODE:D16-5P&7-Z1E10000D; PRESSURE REDUCING REGULATOR (SERIES I) BODY SIZE 1",STANDARD DIAPHRAGM CONSTRUCTION; CARBON STEEL BODY & CARBON STEEL SPRING CHAMBER; P TRIM: 17-4 PH SST TRIM WITH CTFE SEAT,NEOPRENE DIAPHRAGM,; BUNA-N(NBR) STATIC SEALS,TFE U-CUP W/SST ENERGIZER DYNAMIC SEAL