There is no need for an external fuel filter, anymore. Gasoline is delivered very clean today. Also all newer vehicles have plastic gas tanks so there is no corrosion.
I dropped my Jeep gas tank (when it had 160,000 miles) to replace the fuel pump. The bottom of the tank was absolutely clean. I wiped the tank out with paper towels, and it barely stained the towels. I was surprised at how clean it was after 12 years of driving it.