Product review (4 stars): This is the UPPER refrigerator door rack, not the middle or lower rack.  (Also, it's not the freezer door rack.)
My Frigidaire FRT17B3AW3 refrigerator has three door racks.  I didn't notice that the upper rack doesn't extend out as far as the middle and lower racks.  Of course, I ordered this because I needed the lower rack.  I'm not in the mood to return it, so I'll just use it in the middle position and switch the larger middle rack to the lower position.

Both sizes fit in all three rack positions.  It seems that the larger (middle/lower) racks' part number is 240535201.

BTW, the refrigerator door racks don't fit in the freezer door.  Those racks are about 1.5 inches shorter side-to-side.