Model D Rev D Pressure Reducing Regulator For Cryogenic Service (Requires Cryogenic Lubricants During Assembly); 1/2" Line Size; Sales Kit B; Stainless Steel Body And Spring Chamber, Oxygen Cleaning Per Cashco Specification S-1134; S36 Trim: 316 Stainless Steel With PTFE Seat And 302 Stainless Steel Diaphragm; 70-150 PSI Range Spring;