30" x 30" Cube Core Eggcrate Return Air Grille Material_Steel + Product Details Size -

+ Product Details Size - 14"w X 28"h is the size for the duct opening measurement only

5" Wide x 12" Tall x 2

actual front end outer dimensions are approximately 27 5/8" width X 34 5/8" height -

+ Product Details Size – 20"w X 4"h is the size for the duct opening measurement only

+ Product Details Size – 26" x 28" or 28" x 26" is the size for the duct opening measurement only

30" x 30" Cube Core Eggcrate Return Air Grille Material_Steel + Product Details Size -+ Product Details Size 30" x 30" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 31. 75" X 31. 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 electric