12" x 12" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover Aluminum - Cube Core 3/8” - 4223 PSI

3/8” - 4223 PSI

75"H – fits a 16" X 4" duct opening

For added versatility

actual front end outer dimensions are approximately 30 5/8" width X 26 5/8" height

12" x 12" - 1-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover Aluminum - Cube Core 3/8” - 4223 PSI+ 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