Product review (3 stars): Doesn't Quite Fit
Inserting the filter into the slot is perfect, it slides and clicks in just fine. However, it's supposed to be able to click into the cover (pictured in the product photo, but does not come attached), and the one I got does not slide in so easily. It isn't necessary to the function of the filter, so I've left it off for now, but it is kind of annoying.