10"w X 6"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 7.75"H] w24h24 + Product Details Size –

+ Product Details Size – 18"w X 12"h is the size for the duct opening measurement only

+ Product Details Size – 34"w X 16"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 36 5/8" width X 26 5/8" height

unrestricted airflow with a precise 50° angled design

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

10"w X 6"h [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 11.75"W X 7.75"H] w24h24 + Product Details Size –+ Product Details Size 10"w X 6"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 75" width X 7. 75" height. High Quality High quality steel with counter sunk screw holes (screws included) and no sharp edges. Equipped with a lever for easy airflow adjustment and dampening. Airflow Control Adjustable airflow lever allows precise control over the direction and volume of air. Installation