26" x 32" or 32" x 26" Cube Core Eggcrate Return Air Grille w32h32 you can watch this informative

you can watch this informative video tutorial: How to Measure Your Vent Hole Before Ordering a Grille

R value rating of insulation - R3

+ Product Details Size – 6" x 10" or 10" x 6" is the size for the duct opening measurement only

provides a modern look and quiet operation due to its half-inch by half-inch cube design

crafted from 99

26" x 32" or 32" x 26" Cube Core Eggcrate Return Air Grille w32h32 you can watch this informative+ Product Details Size 26" x 32" or 32" x 26" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 27. 75" X 33. 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