New part. Outer package may have other stock markings from stockroom. The switches are new but may have been preset for stockroom use. You can reset to your desired settings.Each part and outer box will have some markings from tape or pressure presets for stock issue. Photos illustrate a typical outer box and part in stock. Barksdale pressure switch E1H-H250-Q1310-250 psi range, 0.690-17.2 bar switch has attached diaphram seal. Assembly by U.S. Filter Wallace & Tierman ProductsHC Hastelloy-C lower housing tantalum diaphram SF-5 system fill