The invention relates to a fluid filter, especially an oil filter for an internal
combustion engine, comprising a filter housing and a central, approximately tubular
component which extends into the interior of the filter, said central component
engaging in the operating position a projection located on the filter housing and
permanently retained in the filter housing, said component being disengageable
from said projection and nondestructively removable in said disassembly position
from the filter, the component being rotatably mounted around its longitudinal
axis within the filter housing, a retaining component (10) being arranged
in rotatably restricted fashion within the filter housing, which retaining component
in its operating position surrounds and fixes the central component by means of
a clamping or locking interference fit, and the central component being rotatable
in its disassembly position when the clamping or locking force is exceeded.
