8" x 36" or 36" x 8" Cube Core Eggcrate Return Air Grille w26h26 this guard fits almost any

this guard fits almost any thermostat and blends seamlessly into any setting

+ Product Details Size – 29"w X 22"h is the size for the duct opening measurement only

production and finish on all products

+ Product Details Size – 12" x 26" or 26" x 12" is the size for the duct opening measurement only

+ Product Details Size - 30"w X 24"h is the size for the duct opening measurement only

8" x 36" or 36" x 8" Cube Core Eggcrate Return Air Grille w26h26 this guard fits almost any+ Product Details Size 8" x 36" or 36" x 8" is the size for the duct opening measurement only, actual front end outer dimensions are approximately 9. 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