30" x 36" or 36" x 30" Cube Core Eggcrate Return Air Grille w36h36 + Product Details Size -

+ Product Details Size - 32"w X 24"h is the size for the duct opening measurement only

14" Diameter Is The Size For The Duct Opening Measurement Only

+ Product Details Size – 30" x 32" or 32" x 30" is the size for the duct opening measurement only

Install 2 Vents

actual front end outer dimensions are approximately 34 5/8" width X 20 5/8" height

30" x 36" or 36" x 30" Cube Core Eggcrate Return Air Grille w36h36 + Product Details Size -+ Product Details Size 30" x 36" or 36" x 30" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32. 5" X 38. 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