FILTER APPARATUS USING ALTERNATE TYPES OF REPLACEABLE FILTER ELEMENTS

摘要

The end cap or header for a water filter apparatus using replaceable tubular filter elements includes a central sealing sleeve that extends downwardly from the underside of the header within the threaded boss providing connection to the filter housing, the sealing sleeve adapted to provide sealing engagement with either of two common types of filter elements, one utilizing an annular end seal and the other utilizing an O-ring seal on the filter element delivery tube.