Foro Canale 20" x 20" [Faccia 21,6" x 21,6"] Coperchio Ventilazione Alluminio 4 Vie: Regolabile...
Size: 20” x 20” Duct Hole - 4 Way. Suitable for heater vent covers or heat vent covers. Open it fully and gradually close until achieving the desired airflow, ensuring comfort without altering air direction.