10" X 6" [Duct Opening] 1-Way Air Vent Adjustable Aluminum Curved Blades Integral Multi-Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 7.75"H] w12h12 6"w X 6"h 3-Way Fixed white G1812W2V HP The vent also has

6"w X 6"h 3-Way Fixed Curved Blade Air Supply Diffuser - Vent Duct Cover - Grille Register - Sidewall or Cieling - High Airflow - White

+ Product Details Size – 12"w X 36"h is the size for the duct opening measurement only

Actual Filter Size – 31 3/4"w x 13 3/4" x 1"

Perfect for sidewall or ceiling installation

Durable and Long-Lasting – Built with high-impact clear plastic and premium materials for dependable performance

10" X 6" [Duct Opening] 1 Way Air Vent Adjustable Aluminum Curved Blades Integral Multi Shutter Damper HVAC Diffuser [Outer Dimensions: 11.75"W X 7.75"H] w12h12 6"w X 6"h 3 Way Fixed white G1812W2V HP The vent also has 6"w X 6"h 3 Way Fixed Curved Blade Air Supply Diffuser Vent Duct Cover Grille Register Sidewall or Cieling High Airflow White + Product Details Size – 12"w X 36"h is the size for the duct opening measurement only