MODEL "DA1" SALES KIT FOR PRODUCT CODE: D1B-ASGS-U4A10000D; PRESSURE REDUCING REGULATOR (SERIES I) BODY SIZE 3",STANDARD DIAPHRAGM CONSTRUCTION; CF3M BODY,316L SST SPRING CHAMBER; S TRIM: 316L SST TRIM WITH POLYALL SEAT,ETHYLENE PROPYLENE(EPR) DIAPHRAGM