| Brand | Karter Scientific |
|---|---|
| MPN | 201A29 |
Check the listing for details. 16x150mm Polystyrene Test Tubes w/Caps (Pk 25). Condition: New. Listed at 8.97 USD. This is a case of 25 new, clear polystyrene (plastic), non-graduated 17mm. Since polystyrene is not as hard as glass, however, it can scratch easily. Clear Polystyrene. The test tubes have. test tubes are ideal for a wide range of laboratory applications.