Proper diameter fuel hose material and a pair of clamps should do it.

This is a common preventative maintenance repair used by independent shops here to avoid the hard line chafing that occurs where both lines run through that metal bracket screwed to the frame. they remove the bracket, splice the lines, then fasten them using plastic wire ties.

I'd try a compression fitting. The parts store may have some with their assortment of fittings.
And if it doesn't work, at least it was quick and didn't cost much!
Best of luck.

Not that much pressure in there. Get a snug fitting hose and use 2 clamps on each side of the splice. You want at least an inch of tube inside the hose.