2B4-5S1K-24BD

Model D Rev D Pressure Reducing Regulator For General Service; 1/2" Line Size; Sales Kit B; Carbon Steel Body And Spring Chamber; S1 Trim: 316 Stainless Steel Metal Seat And 302 Stainless Steel Diaphragm; 10-40 PSI Range Spring; OPT-4: Piston Stabilizer For Gaseous Service