8" x 36" or 36" x 8" Cube Core Eggcrate Return Air Grille Grilles + Product Details Size –

+ Product Details Size – 18"w X 28"h is the size for the duct opening measurement only

Every grille has a front end frame

this piece is the perfect touch of class you need to add to your decor

This grille has a high standard of design

8" x 36" or 36" x 8" Cube Core Eggcrate Return Air Grille Grilles + Product Details Size –+ Product Details Size 8" x 36" or 36" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 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