14" x 14" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover ceiling Actual Filter Size – 11

Actual Filter Size – 11 3/4"w x 5 3/4" x 1"

75" width X 17

actual front end outer dimensions are approximately 20 5/8" width X 14 5/8" height

Actual Filter Size – 9 3/4"w x 13 3/4" x 1"

14" x 14" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover ceiling Actual Filter Size – 11+ Product Details Size 14" X 14" 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