12" x 12" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover Filter Grille this easy-to-install grille fits seamlessly

this easy-to-install grille fits seamlessly into any standard return filter opening

Actual Filter Size – 7 3/4"w x 33 3/4" x 1"

+ Product Details Size - 34"w X 20"h is the size for the duct opening measurement only

5" width x 13

Upgrade your HVAC system with a high-quality aluminum return grille designed for a clean

12" x 12" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover Filter Grille this easy-to-install grille fits seamlessly+ 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