HVAC Premium 24×36 Return Air Filter Grille Steel Vent Cover Hinged Door.
Model Number190RF 24X36 FBA. The counter-sunk screw holes create a flush, professional look on both walls and ceilings-perfect for DIYers and pros alike. Manufacturer Part Number190RF 24X36 FBA. SMOOTH BLADES FOR MAXIMUM AIRFLOW Engineered for efficiency, the grille’s fixed angled fins promote unrestricted airflow, To get the most out of your HVAC system.