12"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] (Copy) w14h14 + Product Details Size -

+ Product Details Size - 14"w X 24"h is the size for the duct opening measurement only

Check for blockages in the pipes or pump

+ Product Details Size - 36"w X 34"h X 2"d (for duct opening measurement only)

+ Product Details Size – Sheet metal duct board take off start collar is 8" and it is compatible with duct 8"

12"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] (Copy) w14h14 + 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