Looking at Underbed Tanks / What Brand and Why

[72farmer]

I am going to go with the Boyd's top fill on my steel bed 71.I still am not sure what kind of f door I am going to put in the floor to get to the filler cap.They say it will be below the bed floor.If you want to use a flush mount filler you have to pay them a little extra to weld a big barb fitting on the tank filler neck.I want to buy mine from a vendor and that is not a option to have barb welded on.