WAT046980, PSS831915, 30105-254630, 228-00808-91, 00F-4375-E0, waters chromatography column, thermo column, Shimadzu chromatography column, phenomenex chromatography column, packaging box has been opened, the packaging box is still there, all of them have been re-column effect tests with standard samples. If you are interested, you can send a test report. The column is packed well. If it is not easy to use, I can pay the freight fee.