All M. Carder single plane swivels are machined from solid aluminum and brass bar stock. This provides the strongest, the Best and the smoothest surface for the O rings to seal. NO LEAKS. The BRASS male end eliminates galling in aluminum nozzles casting which is a major problem with aluminum swivels and adaptors.

M Carder Performance Advantages

Brass male end will not gall in nozzle castings
Dual O rings seal with all fuels
Machined Aluminum & Brass bar stock give smooth seal surface
NO LEAKS
Internal nylon retainer cord secures firmly but allows for free rotation