12" x 12" - 2-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover w18h18 + Product Details Size –

+ Product Details Size – 8"w X 10"h is the size for the duct opening measurement only

75"H – fits a 12" X 12" duct opening

actual front end outer dimensions are approximately 36 5/8" width X 32 5/8" height

+ Product Details Size – 15" Corner Baseboard Grille - White - HVAC corner vent cover

12" x 12" - 2-Way Extruded Aluminum Ceiling Diffuser Square - HVAC Vent Cover w18h18 + Product Details Size –+ 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