22" x 24" or 24" x 22" Cube Core Eggcrate Return Air Grille Copper Coil + Product Details Size –

+ Product Details Size – 18"w X 22"h is the size for the duct opening measurement only

10"w X 6"h Is The Size For The Duct Opening Measurement Only

+ Product Details Size – 12"w X 10"h is the size for the duct opening measurement only

+ Product Details Size - 10"w X 24"h is the size for the duct opening measurement only

22" x 24" or 24" x 22" Cube Core Eggcrate Return Air Grille Copper Coil + Product Details Size –+ Product Details Size 22" x 24" or 24" x 22" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 23. 75" X 25. 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