8" X 4" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 9.75"W X 5.75"H] 14" Round Duct Pipe this HVAC vent duct cover

this HVAC vent duct cover ensures durability and reliability

Easy Installation – Complete set of sponge gasket and mounting frame included

actual front end outer dimensions are 19" Width X 19" Height

actual front end outer dimensions are approximately 22 5/8" width X 18 5/8" height

making installation a breeze

8" X 4" [Duct Opening] 1-Way Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 9.75"W X 5.75"H] 14" Round Duct Pipe this HVAC vent duct cover+ Product Details Size 8"w X 4"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 75" width X 5. 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 Location