10" x 12" or 12" x 10" Cube Core Eggcrate Return Air Grille Filter Grille + Product Details Size –

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

this piece is the perfect touch of class you need to add to your decor

with actual outer dimensions of 26

High Quality – High quality steel construction

10" x 12" or 12" x 10" Cube Core Eggcrate Return Air Grille Filter Grille + Product Details Size –+ Product Details Size 10" x 12" or 12" x 10" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 11. 75" X 13. 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