10" x 36" or 36" x 10" Cube Core Eggcrate Return Air Grille w14h14 + Product Details Size –

+ Product Details Size – 36"w X 28"h is the size for the duct opening measurement only

+ Product Description

75" width X 17

32"w X 8"h Is The Size For The Duct Opening Measurement Only

10" x 36" or 36" x 10" Cube Core Eggcrate Return Air Grille w14h14 + Product Details Size –+ Product Details Size 10" x 36" or 36" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 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