MODEL "DA4" SALES KIT FOR PRODUCT CODE: D4A-1P87-36100000E; PRESSURE LOADED REDUCING REGULATOR (SERIES IV)-PLPRV BODY SIZE 2-1/2",STANDARD DIAPHRAGM CONSTRUCTION; DUCTILE IRON BODY & LOADING CHAMBER; 17-4PH SST TRIM, 316L SST CAGE, GF-TFE SEAT, FK DIAPHRAGM FK STATIC SEAL, SST/TFE U-CUP DYNAMIC SEAL;