I need some help identifying a component on the return fuel line on my 98 SVT Contour. The part numbers on the round device are FIZE-AA and 971104A. I know it's not the pressure regulator; you can look straight through the fuel connections. Here's a picture. Also, does anyone know which fuel line is the supply and which is the return on the chassis? I need to reconnect fuel lines from the engine fuel rail to the chassis. Thanks!