14" x 20" or 20" x 14" Cube Core Eggcrate Return Air Grille Grille + Product Details Size -

+ Product Details Size - 30"w X 8"h is the size for the duct opening measurement only

7/8" - 3397 PSI

The grille features counter-sunk screw holes that prevent paint from peeling during installation

+ Product Details Size – 10" x 30" or 30" x 10" is the size for the duct opening measurement only

thanks to counter-sunk screw holes and included screws

14" x 20" or 20" x 14" Cube Core Eggcrate Return Air Grille Grille + Product Details Size -+ Product Details Size 14" x 20" or 20" x 14" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 15. 75" X 21. 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