| 摘要 |
A filter element for use in a waste water pipe discharge system, the filter element comprising: an axial support of a pre-determined length, a handle fixed to the axial support facilitating the placement and withdrawal of the filter element, and a plurality of bristles fixed to and extending radially outward from the axial support to an outer margin, the outer margin of the bristles defining a substantially continuous surface generally symmetric about the axial support, the outer margin including a plurality of portions being separated by an intermediate potion wherein the bristles terminate short of the first selected radius.
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