14" X 4" [Duct Opening] 2-Way Vertical Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 5.75"H] Floor Grille Actual Filter Size – 23

Actual Filter Size – 23 3/4"w x 23 3/4" x 1"

+ Product Details Size - 20"w X 16"h is the size for the duct opening measurement only

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

Design – These Supply Diffusers with integral round necks are recommended for heating

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

14" X 4" [Duct Opening] 2-Way Vertical Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 15.75"W X 5.75"H] Floor Grille Actual Filter Size – 23+ Product Details Size 14"w X 14"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" width X 15. 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