16" x 28" or 28" x 16" Cube Core Eggcrate Return Air Grille 14" Diameter + Product Details Perfect Fit

+ Product Details Perfect Fit & Easy Sizing - Designed for a 20" x 24" OR 24" x 20" duct opening (measured at the opening)

allowing unrestricted airflow for optimal HVAC performance

A: Black Grilles Always Look Sharp And Never Show DIrt & Dust Marks

Smooth Surface Edges - Run Your Fingers Across The Surface To Feel The Smoothness

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

16" x 28" or 28" x 16" Cube Core Eggcrate Return Air Grille 14" Diameter + Product Details Perfect Fit+ Product Details Size 16" x 28" or 28" x 16" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 17. 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