Perfect fit for my Shark Navigator! I didn't bother changing my filters at all, as you can clearly see from the discoloration in the picture. I felt like the vacuum was losing suction, so I decided to take it all apart and clean it - not to put dirty filters back into a freshly cleaned vacuum, of course. They fit perfectly and after cleaning all the parts and replacing the filters this completely solved my low suction problem. Highly recommended. Anyone claiming the rectangular filter is missing should remember that it is hidden between the round filters and therefore appears to be stuck to the round felt pad and I almost missed it. The three sets come individually boxed, so I can easily store extras without getting dirty or losing parts of the set.