8C8-3B5K-BC

MODEL "123" SALES B KIT FOR PRODUCT CODE: 8C8-3B57-1F000000C; BACK PRESS RELIEF REGULATOR,TFE GASKETS 1-1/2" SIZE; BRONZE BODY & SPRING CHAMBER (OPT-5), CRYOGENIC CONSTRUCTION OPT-55: CLEANED FOR OXYGEN SERVICE PER SPEC #S-1134; B5 TRIM: BRASS WITH TFE SEAT,PHOS.BRONZE DIAPHRAGM;