34" x 36" or 36" x 34" Cube Core Eggcrate Return Air Grille Fixed Blades with Damper + Product Description Maximize your

+ Product Description Maximize your home’s airflow with this premium 2-way air supply grille

actual front end outer dimensions are approximately 3

Actual Front End Outer Dimensions Are 14" Width X 10" Height - SEE IN DESCRIPTION HOW TO MEASURE A GRILLE

Actual Filter Size – 31 3/4"w x 19 3/4" x 1"

34" x 36" or 36" x 34" Cube Core Eggcrate Return Air Grille Fixed Blades with Damper + Product Description Maximize your+ Product Details Size 34" x 36" or 36" x 34" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 35. 75" X 37. 75". High Quality High quality, rust free aluminum construction with smooth finished edges and counter sunk screw holes (screws included); no sharp edges.. Installation Location sidewall and ceiling. Design Cubic core eggcrate design Offers highest airflow efficiency at almost 95%, reducing