8C8-3B5K-BAC

Model 123 Rev C Back Pressure Regulator, PTFE Gaskets; 1-1/2" Line Size; Sales Kit A; Bronze Body With Bronze Spring Chamber, OPT-5: Cryogenic Construction, OPT-55: Cleaned For Oxygen Service Per Cashco Specification S-1134; B5 Trim: Brass With PTFE Seat, Phosphor Bronze Diaphragm; 75-130 PSIG Stainless Steel Range Spring