OEM Eberspacher Cabin Heater Air Outlet / Inlet Louver with flange.
For 90mm/100mm  (3-1/2"-4") outside diameter air ducts.
Can rotate to adjust the flow of the air.
Can also work with Webasto heaters or other air conditioning systems.
Part number:  201609800900.
Brand new.  Some dust from sitting.

If you want to purchase a few, please contact me for combined shipping prices.

Thanks for looking.