12" X 8" [Duct Opening] 2-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 9.75"H] 14" Diameter + Product Description Enhance your

+ Product Description Enhance your HVAC system with our Aluminum Return Filter Linear Bar Grille

actual front end outer dimensions are approximately 12 5/8" width X 30 5/8" height

closest('dt')

Actual Filter Size – 27 3/4"w x 31 3/4" x 1"

much more than required 700 PSI for R410

12" X 8" [Duct Opening] 2-Way Horizontal Fixed Curved Blade Air Supply Diffuser Register Vent Cover Grille [Outer Dimensions: 13.75"W X 9.75"H] 14" Diameter + Product Description Enhance your+ Product Details Size 12"w X 8"h is the size for the duct opening measurement only, actual front end outer dimensions are approximately 13. 75" width X 9. 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