nabit

I am going to do the return line on my car when I route all the fuel lines. My question is were do I get a fuel line that has and entrance for the fuel and a return or exit for the fuel? I see fuel lines that go to both on a double pumper and then I see fuel logs but neither has a second out for a return line, just the initial entrance. Were can I find one and what are you running if you are using a return line to your fuel cell or tank?

Thanks!!