Material: Plastic (polipropylen) Heat class: A (105°C )
Them middle oft the fan ( sleeve ) can be take out and it is turningable from 6 mm to 22 mm if you choose with zero ( 0 ) hub.
We are trading these fans with fixed indoor axis, what you can also find in our webshop.
For example: Cs71 123/14 or Cs 123/16
Also can be choose fans with fixed axis: 14,16,19,20,22mm. If you like other axis what is different like these, choose the 0 mm. You can turning it from 6 mm to 22 mm.