14" x 26" or 26" x 14" Cube Core Eggcrate Return Air Grille steel + Product Details Size –

+ Product Details Size – 8"w X 36"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 20 5/8" width X 24 5/8" height

Incorporated with Integral Butterfly Damper for full Airflow Control

Actual Filter Size – 24 3/4"w x 9 3/4" x 1"

actual front end outer dimensions are approximately 30 5/8" width X 16 5/8" height -

14" x 26" or 26" x 14" Cube Core Eggcrate Return Air Grille steel + Product Details Size –+ Product Details Size 14" x 26" or 26" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 27. 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