30" x 34" or 34" x 30" Cube Core Eggcrate Return Air Grille 10in diameter + Product Details Size -

+ Product Details Size - 20"w X 14"h is the size for the duct opening measurement only

Mounted with frame and bayonet joint which are included

actual front end outer dimensions are approximately 16 5/8" width X 22 5/8" height

this model ensures top-notch air quality

30" x 34" or 34" x 30" Cube Core Eggcrate Return Air Grille 10in diameter + Product Details Size -+ Product Details Size 30" x 34" or 34" x 30" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32. 5" X 36. 5". 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