A manifold assembly provided for a server rack. The manifold assembly can include a manifold tube with a port hole within a spotface that extends inward from an external surface of the manifold tube. A channel can be included having a channel aperture. A bushing can also be included with a throughbore extending along a bushing axis. The bushing can be coupled to the channel with the bushing axis in alignment with a center of the channel aperture. The channel can be rigidly secured to the manifold tube to provide structural support thereto relative to the server rack, with the bushing captivated between the channel and the manifold tube and the bushing received within the spotface.