| 摘要 |
A filter assembly for filtering viscous fluid materials, including a filter body having an inlet and an outlet, a filter element having an open end and a closed end and a collar structure at the open end. The collar structure is retainable proximate the inlet end such that fluid flows into an interior of the filter element through the open end. The filter assembly also includes a filter cap couplable to the filter body at the inlet end and a filter cap retaining structure to removably secure the filter cap to the filter body while substantially maintaining a relative rotational orientation between the filter cap and the filter body.
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