Fuel line from tank, the pressure one to the dual filters. Can it just be pulled out and replaced or is it mounted or clamped in some way?

My pressure line just before the fuel filters started spraying fuel along a 3 inch area. I cut that and temporarily spliced a piece in. The hose looks new but clearly dry rot along the side. Ordered hose and clamps but wondering if I can fish the new hose in or if I need to drop the tank. Any input appreciated, I replaced a tank many years ago but don't remember.