In various embodiments, a data-driven model is provided for an application detection engine for the detection and identification of network-based applications. In one embodiment, a graphical interface is provided including at least one axis that is divided into a plurality of axis regions. The rate of attenuation may occur at a rate responsive to an indication provided by the TX unit. The bezel assembly includes a bezel pivotally coupled to the bezel chassis to be pivotable between an upper position and a lower position with respect to the main chassis. The hub further includes a stiffening web extending within the blade flange area and defining a web plane. The liquid then flows through the hose, but will not come out until the user activates the nozzle.