Originally posted by Schrijver99
If you open the feulcap and you can see a hole for a screw at the bottom you have the new one (with brasscollor filter inside).
If you can't see it, you have the old one (705 tank with old white 705 "filter")
I also have the old one and have to use a fuelfilter 
My tank has the hole for for decreasing the volume. It comes with the white filter. I'm using an external filter because I've had problems without it.