Radium Engineering designed the 3/8in NPT Plug as a purpose-built solution that adapts the thread or hose connection shown in the product name so performance plumbing can transition cleanly between two standards. Radium fittings are intended for compact, serviceable fuel, oil, and fluid-system plumbing where correct thread engagement and sealing are critical.

The configuration shown here uses 3/8in NPT NPT threading, making exact connection and component matching important during installation. Match both connection standards exactly and use the correct sealing method for the thread type being installed.