0B4-LS17-A4000000B

Model 345 Rev B Pressure Reducing Regulator; 1/2" Line Size; Stainless Steel Body With Bronze Spring Chamber; S1 Trim: 316 Stainless Steel Metal Seat, Fluorocarbon Elastomer O-Rings, Graphite/NBR Cylinder Gasket; OPT-30: Mates WIth ASME 1500 Raised Face Flanges; 500-1000 PSIG Range Spring