12" x 12" - 2-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover 18" Diameter Compatible with 24x24 openings and

Compatible with 24x24 openings and built from durable

Actual Filter Size – 9 3/4"w x 17 3/4" x 1"

unrestricted airflow with a precise 50° angled design

it's built to last and will never rust

preventing tampering and maintaining consistent temperature settings

12" x 12" - 2-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover 18" Diameter Compatible with 24x24 openings and+ 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