My filter box was loaded with tree leaf debries which the Honda tech missed cleaning out when he changed the filters recently. I bought new ones and changed them out with the assistance of the teriffic pictures posted above, thanks. I had to vacuum out the tree leaves debries with a piece of 3/4" copper pipe taped to a vacuum cleaner hose, since the filter slot is narrow and deep. Small amounts of the dirt were bypassing the filter which was binding on the leaves and dirt.