Product review (3 stars): When this filter is installed the integrated "handle" on the ...
When this filter is installed the integrated "handle" on the end of the filter no longer points straight up and down.  That would make you think that it is not locked in place.  I removed it and put it next to the original filter and this appears to be a quality control issue.  In relation to the end of the filter with the o rings, the integrated handle on the new filter is about 15 degrees off.