12" x 12" - Corner Direction Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover 6" Diameter actual front end outer dimensions

actual front end outer dimensions are approximately 14 5/8" width X 30 5/8" height

actual front end outer dimensions are approximately 20 5/8" width X 22 5/8" height

Rigid Built For External Use– The sturdy and rigid design features noise free components that eliminates vibration and excess noise to the louvers

When it's time to upgrade your HVAC Vents in your house

For 8" Round Duct Opening - Spiral or Flex

12" x 12" - Corner Direction Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover 6" Diameter actual front end outer dimensions+ Product Details Size 12" X 12" is the size for the duct opening measurement only, actual front end outer dimensions are 3". Design Equipped with lever for full airflow control; back blades made of black plastic for reduced air noise and discreet appearance; "Opposing" back blades, ensuring they don't overlap, provide precise damper control and superior air dispersion. High Quality Aluminum The premium durable aluminum will never rust and it will