These high-polish chrome plated brass barb fittings feature a captive o-ring.

 

"Eurostyle": This design requires a flat mating surface, and thus does not necessitate the presence of an o-ring groove in the mating part surface to make the seal.

 

The overall barb & body length is shorter than usual, in order to provide sufficient clearance between VGA water-blocks in triple SLI configurations.