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| Catalog Number | Color | Unit Size |
|---|---|---|
| 540-QPK also known as 540-Q | White | Pack of 1000 |
| 540-B-Q | Blue | Case of 5000 |
| 540-G-Q | Green | Case of 5000 |
| 540-N-Q | Natural | Case of 5000 |
| 540-Q | White | Case of 5000 |
| 540-R-Q | Red | Case of 5000 |
| 540-Y-Q | Yellow | Case of 5000 |
Thermo Scientific™ QSP™ Plug Cap Tube Closure fits 5ML, 12x75 tubes, 12mm and 13mm tubes, knurled cap helps with grip and the cap collar has ribs securing cap in the tube, Blue color. Non-sterile clean claims; Rnase/Dnase, DNA, pyrogen and endotoxin free.