# What is the difference between NextSeq PhiX Control Kit and PhiX Control v3?

* The PhiX library is the same in both kits, thus either kit can be used in any Illumina sequencing platforms.
* The only difference between kits is that the ***NextSeq PhiX Control Kit*** also includes Resuspension Buffer (RSB) whereas the ***PhiX Control v3*** does not.

| Part Name                | Part Number                      | Includes RSB? |
| ------------------------ | -------------------------------- | ------------- |
| NextSeq PhiX Control Kit | <p>15051973<br>(FC-110-3002)</p> | Yes           |
| PhiX Control v3          | <p>15017872<br>(FC-110-3001)</p> | No            |

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| *For any feedback or questions regarding this article (Illumina Knowledge Article #2925), contact Illumina Technical Support* [*techsupport@illumina.com*](mailto:techsupport@illumina.com?subject=Question%2FFeedback%20Regarding%20Illumina%20Knowledge%20Article%20#000002925%20-%20Instrumentation%20\&body=Dear%20Illumina%20Technical%20Support,%0D%0A%0D%0A)*.* |


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