Amazon.com: 10" w X 6" h Aluminum Double Deflection Adjustable Air Supply HVAC Diffuser - Full Control Vertical/Horizontal Airflow Direction - Vent Duct Cover [Outer Dimensions: 11.6" w X 7.6" h] :
Ventech Aluminum Double Deflection Grille with Damper - China Air Grille, Double Deflection Grille | Made-in-China.com