Patent ID: 8216466

Claim:
A fluid filtration apparatus comprising: a first housing; a second housing; electrical components, including a flow indication receiving device operatively positioned in the first housing and a flow indication signaling device operatively positioned in the second housing, the first housing being removable from the second housing without disconnecting an electronic connection; a pressure vessel having an inlet and an outlet, and a removable center core assembly having a handle and being operatively positioned in the second housing by rotational engagement of the handle with a removal ramp on the pressure vessel, the pressure vessel comprising: a greater useful life filtration media operatively positioned in the pressure vessel; and a lower useful life filtration media operatively positioned on the removable center core assembly to provide for removal of the lower useful life filtration media from the pressure vessel with the removable center core assembly while leaving the greater useful life filtration media in the pressure vessel; and plumbing components for operatively connecting a fluid supply to the inlet of the pressure vessel; and at least one filtered fluid delivery structure for operatively connecting the pressure vessel to the outlet of the pressure vessel.