MODEL "DA5" BACK PRESSURE REGULATOR SALES KIT FOR PRODUCT CODE:D59-6S97-4Q520000E; (SERIES V)-BPV BODY SIZE 2",STANDARD DIAPHRAGM CONSTRUCTION; LCC STEEL BODY & LCC STEEL SPRING CHAMBER; 316L SST TRIM, V-TFE SEAT, FK DIAPHRAGM FK STATIC SEAL, SST/TFE U-CUP DYNAMIC SEAL