Description
actual front end outer dimensions are approximately 26 5/8" width X 32 5/8" height
+ Product Details Size – 6" x 8" or 8" x 6" is the size for the duct opening measurement only
Actual Filter Size – 17 3/4"w x 33 3/4" x 1"
no questions asked
Ideal for Walls & Ceilings: Designed for seamless installation in standard 18" X 6" duct openings
18" x 28" or 28" x 18" Cube Core Eggcrate Return Air Grille 8in diameter actual front end outer dimensions+ Product Details Size 18" x 28" or 28" x 18" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 19. 75" X 29. 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