24" x 36" or 36" x 24" Cube Core Eggcrate Return Air Grille 12" Round Duct Pipe Some of our best features

Some of our best features aren't readily apparent

+ Product Details Size - 32"w X 34"h is the size for the duct opening measurement only

+ Product Details Outer dimensions: – fits a duct opening

+ Product Details Size – 12"w X 12"h

+ Product Details Size – 26"w X 6"h is the size for the duct opening measurement only

24" x 36" or 36" x 24" Cube Core Eggcrate Return Air Grille 12" Round Duct Pipe Some of our best features+ Product Details Size 24" x 36" or 36" x 24" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 25. 75" X 37. 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