14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Grille 10in diameter + Product Details Size –

+ Product Details Size – 26"w X 30"h is the size for the duct opening measurement only

+ Product Details Size – 6" x 26" or 26" x 6" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 42 5/8" height -

Ideal for Walls & Ceilings: Designed for seamless installation in standard 10" X 10" duct openings

actual front end outer dimensions are approximately 12 5/8" width X 8 5/8" height -

14" x 34" or 34" x 14" Cube Core Eggcrate Return Air Grille 10in diameter + Product Details Size –+ Product Details Size 14" x 34" or 34" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 35. 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