This Edelbrock -6 AN regulator fuel inlet fitting (part #3577) provides a clean connection for Pro-Flo EFI fuel-mounted regulators. It screws onto the fuel rail mounted regulator and presents a -6 AN male nipple for the return fuel line, making the return plumbing straightforward and tidy on Edelbrock Pro-Flo EFI systems.
Edelbrock Fitting -6An Pro Flo Regulator