6" x 6" - Corner Direction Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover fixed bar Actual Filter Size – 27

Actual Filter Size – 27 3/4"w x 23 3/4" x 1"

These are built heavy duty for installation into brick and cement walls

actual front end outer dimensions are approximately 12 5/8" width X 26 5/8" height

actual front end outer dimensions are approximately 16 5/8" width X 36 5/8" height

lightweight aluminum

6" x 6" - Corner Direction Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover fixed bar Actual Filter Size – 27+ Product Details Size 6" X 6" 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 never