The nano-tee without gauge pin fits into the 10,000psi nanoACQUITY system. This nanoTee is used on the following configurations: 2D with Dilution, Direct Injection, Single Pump, and Vented Dual Pump Trapping. To see the Fluidic Configurations for the nanoACQUITY UPLC, go to the Url Link below, under Systems select nanoACQUITY, click on the Waters Graphical Part Locator, and then choose Fluidic Configurations on the right side of the page. There will be the six different configurations of the nanoACQUITY that you can click on individually to see a larger image. There will also be a parts list for that specific configuration on the right side of the page.