Black EN end air outlet that is secured to a panel using an EM end outlet nut
This outlet has a very low profile, protruding only about 6mm from the mounting surface, and features a pivoting throttle that can be used to adjust the air flow.
Requires a 60mm diameter panel hole and suits a max. panel thickness of 19mm
The segmented threads allow you to push the nut over the outlet first, then turn the nut to tighten the outlet against the mounting surface.