30" x 34" or 34" x 30" Cube Core Eggcrate Return Air Grille Compatible With Duct 6in and smooth surface for years

and smooth surface for years to come

Carefully shrink wrapped with cardboard backing to prevent damage in shipment

+ Product Details Size – 28" x 30 or 30" x 28" is the size for the duct opening measurement only

actual front end outer dimensions are approximately 20 5/8" width X 38 5/8" height -

+ Product Details Size – 20" x 36" or 36" x 20" is the size for the duct opening measurement only

30" x 34" or 34" x 30" Cube Core Eggcrate Return Air Grille Compatible With Duct 6in and smooth surface for years+ Product Details Size 30" x 34" or 34" x 30" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 32. 5" X 36. 5". 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