12 Inch By 4 Inch Direct To Duct Surface Grilles For 20 Inch Duct Dope Matte Black Steel HVAC Air Vent Grille Durable Metal Duct Vent Cover Made To Order With 2 To 4 Weeks Production Time

12x4 Inch Direct-To-Duct Matte Black HVAC Grille for 20 Duct
✔️ Adjustable blades for precise airflow, durable matte finish

This 12x4 inch direct-to-duct surface grille is finished in matte black steel and designed for 20 inch ducts. Made to order with a production time of 2-4 weeks, it supports precise air diffusion and balanced ventilation in residential, commercial, and industrial HVAC systems.

✅ 12x4 inch direct-to-duct surface grille for 20 inch duct
✅ Matte black steel frame with gasket sealing for secure fit
✅ Individually adjustable blades for directional airflow control
✅ Counter-sunk screw holes for easy, clean installation
✅ Made-to-order with 2-4 weeks production time

💡 What is a direct-to-duct grille used for in HVAC airflow management?

This handy device helps balance airflow and diffuse air more efficiently. - Directs air precisely with adjustable blades - Fits 20 inch ducts and 12x4 inch face - Sealed frame with gasket and countersunk screws for secure install✝️