The Radium Engineering 1/2in SAE Female to 5/16in Barb is designed so it connects 1/2in SAE Female to 5/16in Barb, giving the system a direct transition between the two connection standards. That keeps the plumbing compact and serviceable while avoiding a stack of extra adapters in a fuel, oil, or other compatible fluid system.

This version is built around a 1/2in SAE Female SAE connection; verify those details against your existing plumbing and hardware before ordering. Match both connection standards exactly and use the correct sealing method for the thread type being installed.