6" x 6" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover w6h6 Actual Filter Size – 29

Actual Filter Size – 29 3/4"w x 23 3/4" x 1"

actual front end outer dimensions are 15

+ Product Details Size - 22"w X 28"h is the size for the duct opening measurement only

Whether you're restoring an old Victorian or craftsman style home

Actual Filter Size – 11 3/4"w x 25 3/4" x 1"

6" x 6" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover w6h6 Actual Filter Size – 29+ 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