| 摘要 |
The case (16) of a filter cartridge has the shape of a cylinder that is closed at one end and open at the other end, and has a coupling member (18) that on the open end capable of coupling to the head; the filter element (17) and a securing member (27) are enclosed within this case; while the securing member (27) is provided as a unit with an inner cylinder (29); this inner cylinder is removably inserted into the interior of the filter element (17); by means of this insertion, the filter element is combined as a unit with the securing member; and by means of the securing member (27) becoming coupled to the coupling member (18), the filter element is secured within the case.
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