MODEL "DA2" SALES KIT FOR PRODUCT CODE: D26-1XX7-1AX55442E; DIFFERENTIAL PRESSURE REDUCING REGULATOR (SERIES II)-PDRV BODY SIZE 1",STANDARD DIAPHRAGM CONSTRUCTION; DUCTILE IRON BODY & SPRING CHAMBER,1/8" PETCOCK VENT; SPECIAL TRIM MATERIALS; NPT END CONNECTION; 5-20 PSID RANGE SPRING; PER SPQ NUMBER 55442 P TRIM: 17-4PH SST TRIM WITH GF-TFE SEAT,17-7PH SST DIAPHRAGM,;