Radium Engineering designed the 5/16in SAE Female Deep to 5/16in Barb as a purpose-built solution that connects 5/16in SAE Female Deep 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.

Radium specifies a 5/16in SAE Female SAE connection for this version, so confirm the surrounding system uses the same sizes and standards. Match both connection standards exactly and use the correct sealing method for the thread type being installed.