Direct To Duct Curved Air Grilles For 20 Inch Duct, 16 By 10 Matte Black Steel Vent Grille With Adjustable Airflow And Built In Diffuser, Made To Order, 2 To 4 Weeks Production Time, Built Tough HVAC Supply Diffuser

Curved Direct-to-Duct Air Grilles for 20 Inch Duct, Matte Black
✔️ Made-to-order, 2-4 week production; curved face with adjustable airflow

Direct-to-duct curved air grilles feature a curved steel face designed for 20-inch ducts, with independently adjustable vertical fins at the front and horizontal fins at the rear to steer airflow precisely. The built-in diffuser improves air mixing and reduces noise, while a back deflector scoop enhances stability in high-velocity runs. Finish options include matte black (also white on request) and standard metallic gray in stock; white and matte black finishes are made to order.

✅ Curved steel face fits duct diameters with ±2 inches tolerance
✅ Double-deflection airflow system with adjustable front vertical fins and rear horizontal fins
✅ Built-in back deflector scoop, secure fasteners, and sealing to minimize air leakage
✅ Matte Black finish; standard metallic gray in stock, white and matte black on made-to-order basis

💡 What is a curved direct-to-duct air grille used for?

Handy airflow control and leakage reduction in duct systems.

- airflow control in HVAC systems
- fits 20-inch ductwork with secure alignment
- built-in diffuser for noise reduction and better air mixing
- durable steel construction for long life
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