16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Grille w18h18 + Product Details Size –

+ Product Details Size – 26"w X 14"h is the size for the duct opening measurement only

875" width X 21

+ Product Description Introducing the 3-coned supply grille for a T-bar lay-in

actual front end outer dimensions are approximately 27 5/8" width X 30 5/8" height

+ Product Details Size – 6" x 8" or 8" x 6" is the size for the duct opening measurement only

16" x 22" or 22" x 16" Cube Core Eggcrate Return Air Grille w18h18 + Product Details Size –+ Product Details Size 16" x 22" or 22" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 75" X 23. 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