Review on ATP B 404 Automatic Transmission Filter by Joseph Katipally

Now just to clarify. This will probably fit your FNR5 gearbox but not mine. In the end I settled on a very expensive gasket. The filter is perfectly shaped except that unlike the one shown in this picture (which has 1 rectangular and 1 round (with ring) holes) my filter should have 2 round holes (with o-rings) on either side. as well as a rectangle. one. Note that you don't see the round hole on the same side as the rectangular hole in the ATP photo. Now if you look at my photo, you will also see a round hole on the same side as the rectangle. My transmission is an FS5A-EL (or FNR5) transmission but it has an extra port that needs a proper filter and the ATP B404 isn't the right one.