20" x 20" Cube Core Eggcrate Return Air Grille w20h20 box-shadow: 0 2px 4px rgba(0

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+ Product Details Size – 10" x 14" or 14" x 10" is the size for the duct opening measurement only

During summer

High Quality Copper Coil Meets/Beats ASTM B280 Standard for Air Conditioning and Refrigeration (Made From C12200 - 99

Measure the size of the air duct/drywall opening

20" x 20" Cube Core Eggcrate Return Air Grille w20h20 box-shadow: 0 2px 4px rgba(0+ Product Details Size 20" x 20" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 21. 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 electric