8C4-3S1K-EBC

Model 123 Rev C Back Pressure Regulator, PTFE Gaskets; 1/2" Line Size; Sales Kit B; Bronze Body With Bronze Spring Chamber, OPT-5: Cryogenic Construction, OPT-55: Cleaned For Oxygen Service Per Cashco Specification S-1134; S1 Trim: 316 Stainless Steel With Metal Seat, 302 Stainless Steel Diaphragm; 120-245 PSIG Stainless Steel Range Spring