Exhaust air wall boxes with return flap in white with round connection 100 mm diameter Dimensions External grille 155 x 155 mm for wall thickness 120-450 mm Ablufttechnik round pipe, tube and hose (Misc.)
Venting to the outside For the vent to the outside well suited by strong fan. The installation is also of a "non-expert" quickly executable. My decision was correct.
