18" x 26" or 26" x 18" Cube Core Eggcrate Return Air Grille w6h6 16" Diameter Is The Size

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

High Standard Quality - Every part is hand inspected for quality before it is packaged

actual front end outer dimensions are approximately 10 5/8" width X 32 5/8" height

+ Product Details Size - 30"w X 14"h is the size for the duct opening measurement only

+ Product Spec Sheet Floor Register Spec Sheet

18" x 26" or 26" x 18" Cube Core Eggcrate Return Air Grille w6h6 16" Diameter Is The Size+ Product Details Size 18" x 26" or 26" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 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