Product review (2 stars): Description is misleading... no indicators on the filter.
BUYER BEWARE: there is no indicator (as it states on the description) to tell you when the filter is ready to be changed.  Otherwise, it seems to work after installation.  I haven't changed it out yet to see how effective it really is (to see all the gunk that should accumulate) - but that will have to wait 6 months.  Just be aware of the misleading description.

** update **
I have been using this item for two months now.  Seems to work fine.  However, I agree with another review that the filter is quite thin, you really can see right through the filter in certain areas, and I can only assume that if there was more material, it would work better.

Bottom line: It fits (though as noted previously not as snugly as it could) and works, but for the quality of this particular item, I am willing to pay a few dollars more to try another company.  Two-star rating still applies.