A filter element includes a filter media pack and an axial seal member configured to axially seal against a filter housing. In one embodiment, the network comprises a cable television network, and the content sources include DVR, broadcast, nPVR, and VOD. The system reduces financial risk for an administration by providing incoming transactions verification and risk management. This results in a strong pushing force being generated via output piston of hydraulic pressure cylinder. or higher, compound being compatible with silica precursor, wherein the amount of compound is from 0.